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[HOWTO] / [GUIDE] SPH-L720 Domestic SIM Unlock T-Mobile:AT&T:metroPCS:Straighttalk
Streamlined Guide for Domestic T-Mobile GSM Unlock for SPH-L720
Credit for all of this goes to @autoprime and @nicotheandroidguy
A few notes: I used Windows 7 for the odin flashes , my phone is a SPH-L720 and it is not active on the Sprint network, also the sim card from t-mobile was inactive (brand new from t-mobile store.) and it has a bad esn. I am located in the Phoenix az market so I'm able to take advantage of the 1900mhz band that tmobile has here.
I'm unsure of how this will work with mnvos or other primary carriers and frankly I don't care at the moment, this is my primary phone. Update: confirmed hspa+ for tmobile, metroPCS, straight talk and AT&T.
I HAD MY NEW UNACTIVATED TMOBILE SIM CARD IN THIS ENTIRE TIME
1) First I reverted my rom to a stock MF9 rooted touchwiz rom, instructions and one click odin here:http://forum.xda-developers.com/showthread.php?t=2486134 I’m trying not to straight copy and paste someone else’s work so take a look at that post if you need a clean start. If you are coming from non stock you will need to boot into stock recovery and wipe data/cache before you get started. (I also later used SAC’s rom after a failed attempt at an AOKP fix and it worked as well ) you can switch to any ROM later and the unlock will stick.
2)I rebooted the phone and followed the instructions listed here in post #1 http://forum.xda-developers.com/showthread.php?t=2415587
3) I went to the dialer and typed *#0011# which brought me to the "service mode" Menu.
IF YOU HAVE TROUBLE GETTING THE HIDDEN MENU TO OPEN DO NOT FEAR! I had a ton of trouble at first. In some builds you need to activate an option by adding a line to your build.prop or changing the no flag in efs/hiddenmenu to ON. Google it, there is a ton of help out there.
4) Press the left menu softbutton (the menu button that lights up and vibrates when you touch it) then press the either the button “select” or “Key Input” and type the number 1 or 2 into the box, if nothing happens press menu and select the “back “ button then repeat. This app is sort of like a tin can radio, you can kind of tell that it’s working, but it doesn’t work well.
Depending on if you pressed 1 or 2 in the dialogue box it will take you into either an UMTS or CDMA menu. If you are in the umts menu, press the menu button and select back, this should then proceed to the next step.
5) Select CDMA, then 1.COMMON, press next page twice until you reach page three of COMMON and select 8.PREF MODE SET and select GSM_WCDMA_ONLY
6) Press menu and back until you are at the main menu and select [1]UMTS, then select [1]DEBUG SCREEN, then select [6]PHONE CONTROL, select [2]FAKE SECURITY CONTROL and make sure it is set to ON
7)Press menu and back and select [3] NAS CONTROL. We are going to check a few different settings in this menu so remember how to get here cause I don’t want to repeat myself.
[1] CIPHERING CONTROL = OFF
[2] INTEGRITY CONTROL =ON
[3] SIM CLASS CONTROL = UMTS
[4] REVISION CONTROL = DO NOT TOUCH
[5] RRC(HSPA) CONTROL = DO NOT TOUCH
[6] DUALMODE IMPROVEMENT CONTROL= DO NOT TOUCH
[7] NAS AVOID SECURITY CONTROL= OFF, 0
[8] BIP BLOCK = 1
8) Press menu and back twice, you should be on the PHONE CONTROL menu. Select [7] NETWORK CONTROL, select [1] GFC and make sure that it is set to [1]GSM/(E)GPRS/WCDMA REL8 .
9) Press menu and back and select [2] BAND SELECTION and select WCDMA/GSM ALL for both WCDMA and GSM band preferences. I selected the ALL choice for LTE as well even though I know it isn’t supported for TMOBILE.
10) Under the NETWORK CONTROL menu we just came from select [4] AQUISITION ORDER and change it to [3]UMTS_GSM
11) Press menu and back until you are in the PHONE CONTROL menu and select [5] SIMULATION , press the [2] SW WATCHDOG button 6(six) times and then the [3] HW WATCHDOG 6(six) times. Nothing will happen at all to let you know if you have done this correcctly but as soon as you finish the sixth press on HW WATCHDOG reboot the phone manually:manually:manually IMMEDIATELY . I’m not sure what this does or why this works but @nicotheandroidguy seems to have divined that this is the vital part of the process.
YOUR PHONE STILL WILL NOT HAVE DATA OR VOICE WHEN YOU REBOOT FROM THE WATCHDOG TAPS DO NOT PANIC!!!!!!!!!!! (hopefullly you have your towel with you)
12) WIFI that sonofa up and search for apn settings shortcut and build.prop editor in the Play Store.
Go into the build.prop editor and add the following two lines:
ril.sales_code=LOL
ro.csc.sales_code=LOL
REBOOT PHONE MANUALLY now.
Now Install and create a shortcut on the home screen and select to open. Press the menu soft key and select add apn.
Use:
Name: T-Mobile
APN: epc.tmobile.com or fast.t-mobile.com (for LTE devices)
Proxy:
Port:
Username:
Password:
Server:
MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
MMS proxy:
MMS port:
MMS protocol: WAP 2.0
MCC: 310
MNC: 260
Authentication type:
APN type: default,supl,admin,dun,mms
13) Go into your android settings, select wireless networks, you should see the network mode set as wcdma only do not change this, we set this in the Service Mode Menu , Check that your roaming settings are set to for roaming data/ international data etc.also make sure that there are no roaming guards left on. (roaming guards will only allow you to uncheck GSM and GSM data under international roaming.)
14) reboot
15) profit
At this point I had full access to the TMOBILE UMTS/HSPA+ network and voice/text/mms were working.
At this point you may change roms, be careful not to update past mf9 as you may be unable to downgrade to mdc. YOU MUST DOWNGRADE TO MDC MODEM FOR THIS TO WORK.
If you use a non touchwiz rom you can still access the tellinfo menu by pressing *#*#4636#*#* and selecting WCDMA only and manually adding the apn.
GOOD LUCK! let me know what needs changed in the guide as well.
If you have questions it's useful to know your Baseband /kernel/ rom.
Nice. Will it work with t-mobile in Los Angeles?
Sent from my SPH-L720 using XDA Premium 4 mobile app
Thank you for this thread, I will try again with these steps.
A few notes:
imbmiller said:
3) i went to the dialer and typed *##0011# which brought me to the "service mode" menu.
Click to expand...
Click to collapse
This should be *#0011# I believe
imbmiller said:
5) Select CDMA, then 1.COMMON, press next page until page three of COMMON and select 8.PREF MODE SET and selet GSM_WCDMA_ONLY
Click to expand...
Click to collapse
I had to go 9. NEXT PAGE > twice before doing 8.
gibrannz said:
Nice. Will it work with t-mobile in Los Angeles?
Sent from my SPH-L720 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
According to this :https://t-mobile.jive-mobile.com/#jive-document?content=/api/core/v2/documents/5736
Yes it will. Hspa+ only though.
the.joeba said:
Thank you for this thread, I will try again with these steps.
A few notes:
This should be *#0011# I believe
I had to go 9. NEXT PAGE > twice before doing 8.
Click to expand...
Click to collapse
Np Man, and good catch, fixed. I'll check out that step 8/9 and fix accordingly.
Thank you so very much. I believe opening up the bands made the difference, but I'm now connected to T-Mobile.
You rock so much!
the.joeba said:
Thank you so very much. I believe opening up the bands made the difference, but I'm now connected to T-Mobile.
You rock so much!
Click to expand...
Click to collapse
HELL YEAH MAN! I'm stoked that you were able to get it working. I pulled most of this info from the other threads but I'm glad if it made it easier.
got working for att post paid
Thanks to everyone here.
ka26 said:
Thanks to everyone here.
Click to expand...
Click to collapse
Most excellent! If you fiddle with acquisition order and make it gsm_umts it might identify your network type correctly.
My 1st newbie post:
Thanks for OP's excellent post!:good:
I have a Sprint Galaxy S4 is with stock MF9 (not unlocked).
I have spent days reading about how to get a rooted/unlocked MJA S4. But still could not find answer to the questions:
1. Will this also unlock international sim?
I guess yes, as domestic is harder to unlock. But want to hear the confirmation.
2. You mentioned you used MF9 rooted.
If I unlock it, then update to MJA, will that void the unlock?
3. Does this unlock works with MJA? If it works, do I need to unlock MJA first?
4. If I want a rooted & unlocked S4 with stock MJA, what is the simplest way and the correct order to achieve this goal?
Can I update to MJA, then root, then unlock?
Or do I need to root the MF9, then unlock, then update to MJA, then root?
If I update to MJA first, I can't go back to MF9, correct?
Thank you very much!
staplestaples
staplestaples said:
My 1st newbie post:
Thanks for OP's excellent post!:good:
I have a Sprint Galaxy S4 is with stock MF9 (not unlocked).
I have spent days reading about how to update to MJA and root/unlock it.
But still could not find answer to the questions:
1. Will this also unlock international sim?
I guess yes, as domestic is harder to unlock. But want to hear the confirmation.
2. You mentioned you used MF9 rooted.
If I unlock it, then update to MJA, will that void the unlock?
3. Does this unlock works with MJA? If it works, do I need to unlock MJA first?
4. If I want a rooted & unlocked S4 with stock MJA, what is the simplest way and the correct order to achieve this goal?
Can I update to MJA, then root, then unlock
Do I need to root the MF9, then unlock, then update to MJA, then root?
Thank you very much!
staplestaples
Click to expand...
Click to collapse
Ok
1)i am unsure of whether mja can be unlocked internationally or domestic . If you read the first direction it actually instructs you to downgrade to mdc modem. I'm pretty sure the reason has to do with the options available to you in the hidden menu.
2)i used mf9 rooted as a starting point to downgrade to mdc to perform the international unlock. Autoprime said in the thread that upgrading to mf9 would keep the u lock however I haven't successfully upgraded to mf9 and kept the domestic unlock. I'm going to try to get it to work today but not with mja until there is a reliable downgrade option.
3)i have no idea. I wouldn't suggest trying until there is a reliable downgrade option.
4)i would really slow down and read the international unlock guide from @autoprime I think it will answer a lot of your questions. Like I said I would wait to upgrade to mja if you want a for sure domestic Sim unlockunlock.
Thank you very much, imbmiller.
I will just wait patiently for the MJA solutions before upgrading to MJA/root/unlock.
imbmiller said:
Ok
1)i am unsure of whether mja can be unlocked internationally or domestic . If you read the first direction it actually instructs you to downgrade to mdc modem. I'm pretty sure the reason has to do with the options available to you in the hidden menu.
2)i used mf9 rooted as a starting point to downgrade to mdc to perform the international unlock. Autoprime said in the thread that upgrading to mf9 would keep the u lock however I haven't successfully upgraded to mf9 and kept the domestic unlock. I'm going to try to get it to work today but not with mja until there is a reliable downgrade option.
3)i have no idea. I wouldn't suggest trying until there is a reliable downgrade option.
4)i would really slow down and read the international unlock guide from @autoprime I think it will answer a lot of your questions. Like I said I would wait to upgrade to mja if you want a for sure domestic Sim unlockunlock.
Click to expand...
Click to collapse
So would this also work for AT&T sim? has anyone else tried? Btw, was thinking of updating to 4.3 and MJA but i guess i will have to hold off on that if i want sim unlock international or domestic? I am on MF9 with sim international unlock right now. Would I have to go down to MDC to get this to work?
Also, if you want to go back to sprint again, how would you do it?
wildpig1234 said:
So would this also work for AT&T sim? has anyone else tried? Btw, was thinking of updating to 4.3 and MJA but i guess i will have to hold off on that if i want sim unlock international or domestic? I am on MF9 with sim international unlock right now. Would I have to go down to MDC to get this to work?
Also, if you want to go back to sprint again, how would you do it?
Click to expand...
Click to collapse
You can use MF9, MDL and MDC for the domestic unlock.
Sent from my Nexus 4 using XDA Premium 4 mobile app
Hi thanks so much for putting this together all in one place!
Hi I'm on MF9, rooted, locked.
So really the two major steps are:
1. Do int'l unlock first (autoprime)
2. Then do domestic unlock
My question - after you get both unlocks working and say you have your phone working on tmobile, what do you need to do to get it working on Sprint... rather, is the phone operatable on both Sprint and Tmobile? Or do you have to do some tinkering to get it back to working on Sprint again. I'd like to have the flexibility of popping SIMs in and out and switching carriers at will, Sprint included (b/c I don't want to cancel Sprint just yet...eventually, but not immediately). Thanks!
---------- Post added at 09:59 AM ---------- Previous post was at 09:53 AM ----------
Another question
When you're tinkering with swapping out modems and APN settings, does doing a nandroid backup prior help so when you have an "oh sh!t" moment, you can just do a full restore...? Or is what's backed up in nandroid outside (excludes) these changes? Thanks.
laoh said:
Hi thanks so much for putting this together all in one place!
Hi I'm on MF9, rooted, locked.
So really the two major steps are:
1. Do int'l unlock first (autoprime)
2. Then do domestic unlock
My question - after you get both unlocks working and say you have your phone working on tmobile, what do you need to do to get it working on Sprint... rather, is the phone operatable on both Sprint and Tmobile? Or do you have to do some tinkering to get it back to working on Sprint again. I'd like to have the flexibility of popping SIMs in and out and switching carriers at will, Sprint included (b/c I don't want to cancel Sprint just yet...eventually, but not immediately). Thanks!
---------- Post added at 09:59 AM ---------- Previous post was at 09:53 AM ----------
Another question
When you're tinkering with swapping out modems and APN settings, does doing a nandroid backup prior help so when you have an "oh sh!t" moment, you can just do a full restore...? Or is what's backed up in nandroid outside (excludes) these changes? Thanks.
Click to expand...
Click to collapse
OK the answer to the first question is to put your sprint sim card back in then put your phone back in to lte/cdma auto through the tell info app through Google play device info then change it in to lte/cdma auto.
Answer to the second question is that the nandroid might help you in a oh sh!t moment but the modem and settings for the unlock stay after a factory rest but a other update could kill it. A stock Odin flash and dailing ##72786# could also kill both unlocks.
Sent from my Nexus 4 using XDA Premium 4 mobile app
Someone on this thread got it to work. I'm unsure if Att has hspa+ tho so you might be relegated to edge
Nevermind, it works on Metro it just matters the SIM http://forum.xda-developers.com/showpost.php?p=47624568&postcount=568
Did you install hiapn and add the apn? What baseband are you on? What rom and kernel? I'm not super positive about mvno s but I'd probly go back to the beginning and start over.
imbmiller said:
Did you install hiapn and add the apn? What baseband are you on? What rom and kernel? I'm not super positive about mvno s but I'd probly go back to the beginning and start over.
Click to expand...
Click to collapse
Sorry I had to edit my post. It did work. There are two different GSM SIMs the one with the dot seemed to work. I Got Edge, 3G, and H+. It is awesome. I also still have 3G with Sprint with the SIM in. I got two phones in one. Thanks.
So I've been on T-Mobile for the last 24 hours but my HSPA+ signal is weak and slow (under 1mb), while my co-worker on T-Mobile (and a T-Mobile phone) has full HSPA+ signal and speed (5-9mb).
Any thoughts on what could be the cause?
I'm running CM11 on MDC. I'll try some other combinations tonight to see if things change.
hi after hours of trying to make my phone work with GSM Sim (T-Mobile), i successfully managed to make it work and here are all the steps I did so other people who can't make it hopefully will see this guide atleast somewhat helpful
here is what i did:
1) first of all, i s-off my HTC One (H-boot 1.55, 3.05.651.6)
-here is the guide i followed
-the same guide but in video
2) flashed the Sprint_HTC_One_m7wls_1.29.651.10_RUU.zip (to downgrade to 4.1.2)
-it is the solution 3), a) here
3) Unlock and root the phone
-a very good guide
note: to make the developer option appear under settings you NEED to go to Settings > About > Software Information > More > and TAP the build number about 7 TIMES, after that the Developer options would appear on settings.
4)The sim unlock guide here
5)Then the GSM Fix connection drop here
-I followed the guide made by xerxes1987 because it is free
exact steps i did:
a) put the phone in CDMA preferred (see step 4 for ref)
b) Dial ##3424# and make sure you tap on and tap the SELECT (VERY IMPORTANT!!!)
c) go to device manager and manually install the driver for HTC DIAG 9k ONLY(you dont want to mess with the one without the 9k) can be found here note: DO NOT download the 9K (COM105) as it is an adware program
d) download, extract and run CdmaDevTermV.2 then scan for ports > select HTC Diag 9k > connect. Under SPC/Lock on the drop down arrow select HTC and scan (you need to copy that number generated). after that select disconnect and close program
e) download and install QPST. run the QPST config. Under ports make sure you select and enable the HTC diag. then under Start Clients select service programming and select your phone and press OK. scroll to the right till you find 1x/HDR Security. Under R-UIM Config drop down selection, select R-UIM only then write to phone (it would ask for SPC number, just put the number you copied on step d and press ok and make sure you let the green bar finish otherwise you RISK bricking your phone)
f) do step 4 again to set it to WCDMA preferred
g) pop in a gsm sim if you haven't already (I tested mine with T-mobile). It would say no service at first but don't worry. go to Settings > Mobile data > Network mode > and select GSM/UMTS Only. then go back and select Available GSM networks > select the first option (cant remember what its called and it would take about 3-5min.) Then select your carrier (in my case T-mobile) and it would say registering something and after that I have the signal bars and it works now with my T-mobile
since I did not made the steps, all credits to where its due.
pradeepvizz for posting the s-off guide
elvisypi, TK Tech News, xerxes1987, thatotherguy.. for sim unlock guide
htconeroot.com for awesome unlock and root guide
and to people who made the tools that I don't know about
I have a dumb question.
If I SIM unlock will I be able to utilize my local carrier's gsm data network. They said they won't be able to, but I believe with the right settings/hacks it can be done.
Another thing to add, my locK. Arrier has JUST one phone that utilizes its 4g Ltd and that is the LG as840, is there a way to modify the phone to use it?
The data is slow as pooh over cdma, I believe my phone is in evdo mode or what ever. I would like to perhaps switch carrier's for faster data.
Great guide I will try when I access the pc I put my adb stuff on.
Another question.
Do I have to stay on 4.1.2? Or can I just flash a nandroid and move forward with it?
raclimja said:
hi after hours of trying to make my phone work with GSM Sim (T-Mobile), i successfully managed to make it work and here are all the steps I did so other people who can't make it hopefully will see this guide atleast somewhat helpful
here is what i did:
1) first of all, i s-off my HTC One (H-boot 1.55, 3.05.651.6)
-here is the guide i followed
-the same guide but in video
2) flashed the Sprint_HTC_One_m7wls_1.29.651.10_RUU.zip (to downgrade to 4.1.2)
-it is the solution 3), a) here
3) Unlock and root the phone
-a very good guide
note: to make the developer option appear under settings you NEED to go to Settings > About > Software Information > More > and TAP the build number about 7 TIMES, after that the Developer options would appear on settings.
4)The sim unlock guide here
5)Then the GSM Fix connection drop here
-I followed the guide made by xerxes1987 because it is free
exact steps i did:
a) put the phone in CDMA preferred (see step 4 for ref)
b) Dial ##3424# and make sure you tap on and tap the SELECT (VERY IMPORTANT!!!)
c) go to device manager and manually install the driver for HTC DIAG 9k ONLY(you dont want to mess with the one without the 9k) can be found here note: DO NOT download the 9K (COM105) as it is an adware program
d) download, extract and run CdmaDevTermV.2 then scan for ports > select HTC Diag 9k > connect. Under SPC/Lock on the drop down arrow select HTC and scan (you need to copy that number generated). after that select disconnect and close program
e) download and install QPST. run the QPST config. Under ports make sure you select and enable the HTC diag. then under Start Clients select service programming and select your phone and press OK. scroll to the right till you find 1x/HDR Security. Under R-UIM Config drop down selection, select R-UIM only then write to phone (it would ask for SPC number, just put the number you copied on step d and press ok and make sure you let the green bar finish otherwise you RISK bricking your phone)
f) do step 4 again to set it to WCDMA preferred
g) pop in a gsm sim if you haven't already (I tested mine with T-mobile). It would say no service at first but don't worry. go to Settings > Mobile data > Network mode > and select GSM/UMTS Only. then go back and select Available GSM networks > select the first option (cant remember what its called and it would take about 3-5min.) Then select your carrier (in my case T-mobile) and it would say registering something and after that I have the signal bars and it works now with my T-mobile
since I did not made the steps, all credits to where its due.
pradeepvizz for posting the s-off guide
elvisypi, TK Tech News, xerxes1987, thatotherguy.. for sim unlock guide
htconeroot.com for awesome unlock and root guide
and to people who made the tools that I don't know about
Click to expand...
Click to collapse
Hi, I have finished all step up to step g. When I select available GSM network-> search for available network, the phone doesn't show up anything. Any advice? What can I do? I'm sure I have T-mobile signal here since I have been using T-mobile
Thanks for this guide. Its really helping me inch my way closer. I heard however that I need to flash an earlier sprint htc one radio in order to connect to domestic gsm networks... Is this true? I have done so and can not pick up any signal whatsoever. i have completed all the steps as well.
Lawrencechung said:
Hi, I have finished all step up to step g. When I select available GSM network-> search for available network, the phone doesn't show up anything. Any advice? What can I do? I'm sure I have T-mobile signal here since I have been using T-mobile
Click to expand...
Click to collapse
keep doing the available gsm search until T mobile appears.
I did mine about 4 times before it appeared.
Hi raclimja,
In my phone when I go to Settings > Mobile data > Network mode, it gives me only 2 options (LTE/CDMA and CDMA Only) there is no GSM option. So my question is about if I will follow this whole guide, will I see GSM options in Network Mode then? I have HTC Desire 816 (virgin mobile) CDMA phone and I want to unlock in to my GSM carrier looks like a great guide with a success rate .
Please reply. Thank you.
I flashed older radio after that unlock was complete I'm on lollipop
Okay, I just got through doing this myself and it seemed that nowhere was this all said at once, or at all. So I thought I'd whip up a quick tutorial concerning how to Domestic Unlock the Samsung Galaxy S4 on any of the newer bootloaders/firmwares/modems. (Knox-enabled)
I did this on both a 4.4.1 galaxy and a 4.3 galaxy- one one NAE and one on MK2
First, for anything to work your modem must be an older one, like version MDL. Download the file SPH-L720_MDC_Modem.exe which is a one-click
Odin .exe that will flash ONLY your modem to MDL.
Steps- put into download mode by taking the battery out and putting it back in. Hold the volume down button, the home buttone and then press the power button. When it vibrates, let go. Press volume up.
Run the SPH-L720_MDC_Modem.exe odin one-click installer.
Connect the usb to computer from phone
when com[24] or whatever shows up, press start.
Now, for the domestic lock to work you first need to do the international unlock @ http://forum.xda-developers.com/showthread.php?t=2415587
It's real easy and explained well at the link above, but I'll run through it quickly anyways.
Download the s4unlocker installer from the post linked above.
Put your phone into diag mode by dialing ##3424#. Press Qualcom button and select the bottom selection.
connect (if it wasn't already) usb from phone to PC
You already installed the proper samsung drivers, right? If not, you'd better do that now.
Okay, now run the s4unlocker and press the scan and unlock button, then wait for the phone to reboot.
Now for the Domestic Unlock part.
Follow the directions at http://forum.xda-developers.com/showthread.php?t=2530610
I'll run through it real quick, too because there were a few things I wanted to mention.
dial *#0011# (or #*0011#, I can't remember)
when it comes up "No service", press the menu key on the bottom left of your phone. This brings up a menu (wow!), on which you should press "back"
Now press the menu key again and in the menu select "key input" A box will open up asking for you to type in something- enter a "1" and then press the enter key BEFORE hitting the OK button. Mine would not work unless I did this.
Now wait, sometimes it takes a good couple of seconds to give you the menu. Follow the rest of the directions from the above link, setting all the settings to what is stated. EXCEPT where he says to set all the preferences to WCDMA ALL, GSM ALL and LTE ALL. When I selected one, however, an asterisk appeared after my selection leading me to believe that you can only select one of these and so I set mine to GSM ALL and left the others alone. This worked for me, so I thought I'd mention it.
Now that you've manually rebooted after following the directions, you still have to edit your build prop to allow you to edit the apn settings. To edit your build.prop you must be rooted so root with CF auto-root http://autoroot.chainfire.eu/ download the proper one for the galaxy s4.
It's just an odin flash, so enter download mode
load up odin 3.x
hit the pda button and select the cf auto root tar
hit start.
After rooting I found that one time I had to do some of the service mode settings again and one time I did not, so I mention it here even though I think I had to because of some other error I had made at the time.
Go to play store and download build.prop editor and APN settings Shortcut
Load the build.prop editor and add these two lines to the end of the file
ril.sales_code=LOL
ro.csc.sales_code=LOL
Now reboot manually
add the apn settings widgit to the main screen and open it
click on menu and add an apn
Enter the apn settings for your carrier here. They're all different,(the carriers) but you can find them(the apn settings) easily with google, since they (carriers) all post their apn settings on their webpages.
Don't forget to save the apn settings.
Now select it.
Now reboot, since it couldn't hurt, right?
If you've done everything right you should now have an domestic and international unlocked Sprint galaxy s4. Enjoy.
I suppose you could now reflash the new modem back onto the phone, but I don't have firsthand knowledge whether this works or not- I've only read that others have said that it works. Remember, ONLY FLASH THE MODEM, the rest isn't necessary and will probably knox you all up
All I did was list these things- credit goes to all those who were linked in the above post. Thanks for all you do.
On stock 4.3 and higher you can go into settings and change your APN, so there's no reason to root and mess around with build.prop editor.
Every time i try this i cant get my wifi back up when i flash back to the nae modem. If i could get pass that then I'll definetly be do that.
can the modem be downgraded
mine came with mk2
leoiden said:
can the modem be downgraded
mine came with mk2
Click to expand...
Click to collapse
Yes, did like that on my L720 4.4.2 after unlocked with T-mobile i flashed 4.4.2 samsung s4 T-mobile odexed rom now the phone work like t-mobile s4 and full 4g signal, except the LTE data.
leoiden said:
can the modem be downgraded
mine came with mk2
Click to expand...
Click to collapse
tomy1986.nt said:
Yes, did like that on my L720 4.4.2 after unlocked with T-mobile i flashed 4.4.2 samsung s4 T-mobile odexed rom now the phone work like t-mobile s4 and full 4g signal, except the LTE data.
Click to expand...
Click to collapse
I have read that the modem itself cannot be downgraded. You can run older android versions and such on the newer modems, but the modem itself cannot be rolled back. I believe it has been like that since MJA.
You can downgrade modem, but can not downgrade bootloader (aboot)
Sent from my Phone using Tapatalk
I completed both the international & domestic unlock. I believe I was successful in each. I have a T-Mo sim card inserted but am not getting a mobile data connection. I do have 2 bars of service though. So I have gotten past the red X on the bars.
I am on 4.4.2 with the MDC modem. I did not do the build.prop stuff, instead opted to just access the APN's from the default menu.
A few things in my menu were different than the OP (probably because of 4.4) such as:
I dont have any roaming menu options
I dont have WCDMA.. just CDMA and LTE/CDMA. I currently have it set to LTE/CDMA
In my APN edit info there was not a place to put in MMS protocol: WAP 2.0
Also under About Device "my phone number" is wrong.
Am I missing something to get this t-mo working?
goblue30093 said:
I completed both the international & domestic unlock. I believe I was successful in each. I have a T-Mo sim card inserted but am not getting a mobile data connection. I do have 2 bars of service though. So I have gotten past the red X on the bars.
I am on 4.4.2 with the MDC modem. I did not do the build.prop stuff, instead opted to just access the APN's from the default menu.
A few things in my menu were different than the OP (probably because of 4.4) such as:
I dont have any roaming menu options
I dont have WCDMA.. just CDMA and LTE/CDMA. I currently have it set to LTE/CDMA
In my APN edit info there was not a place to put in MMS protocol: WAP 2.0
Also under About Device "my phone number" is wrong.
Am I missing something to get this t-mo working?
Click to expand...
Click to collapse
You didn't unlock it. If you were on NAE modem while unlocking then you failed miserably because you're not able to get into the most important part of the unlock...The service menu. If you did indeed downgrade the modem then you're going to need to follow the domestic unlock guide again. If it's showing CDMA/LTE you didn't do it right. It should show WCDMA only and WCDMA only isn't an option you can just select. It gets put there by the service menu.
Sent from my SPH-L720 using xda app-developers app
ecs87 said:
You didn't unlock it. If you were on NAE modem while unlocking then you failed miserably because you're not able to get into the most important part of the unlock...The service menu. If you did indeed downgrade the modem then you're going to need to follow the domestic unlock guide again. If it's showing CDMA/LTE you didn't do it right. It should show WCDMA only and WCDMA only isn't an option you can just select. It gets put there by the service menu.
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
I said I wasn't on NAE, I am on MDC. I did get into the service menu. I did everything in the process without issues. My service menu did NOT have a WCDMA only option. It had LTE/WCDMA and that's what i chose. I just went to the t-mobile store and they verified my APN settings were correct. I am unsure of what to do at this point other than just start all over and do it again.
Anyone else?
goblue30093 said:
I said I wasn't on NAE, I am on MDC. I did get into the service menu. I did everything in the process without issues. My service menu did NOT have a WCDMA only option. It had LTE/WCDMA and that's what i chose. I just went to the t-mobile store and they verified my APN settings were correct. I am unsure of what to do at this point other than just start all over and do it again.
Anyone else?
Click to expand...
Click to collapse
I apologize. Long work day. Follow the guide. When it comes to where it says select LTE, GSM, and WCDMA all, ONLY select WCDMA all. At no point should you see your Sprint phone number in about phone. Also you should see IMEISV in about phone as well if you've successfully unlocked it. It'll help if you posted the steps you've gone through. Otherwise were just shooting in the dark.
Sent from my SPH-L720 using xda app-developers app
tmobile rom
jaywaka2713 said:
I have read that the modem itself cannot be downgraded. You can run older android versions and such on the newer modems, but the modem itself cannot be rolled back. I believe it has been like that since MJA.
Click to expand...
Click to collapse
hi can you tell me where I can download 4.4.2 samsung s4 T-mobile odexed rom for l720. thanks.
ecs87 said:
I apologize. Long work day. Follow the guide. When it comes to where it says select LTE, GSM, and WCDMA all, ONLY select WCDMA all. At no point should you see your Sprint phone number in about phone. Also you should see IMEISV in about phone as well if you've successfully unlocked it. It'll help if you posted the steps you've gone through. Otherwise were just shooting in the dark.
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
Imeisv visible, definitely unlocked as i can make calls texts and use edge data on redpocket mobile (att mvno)
But in phone number I still see my sprint number and I can't get hspa (picking the wcdma all gives me red x no bars, picking gsm all gives me full bars and edge data)
ecs87 said:
I apologize. Long work day. Follow the guide. When it comes to where it says select LTE, GSM, and WCDMA all, ONLY select WCDMA all. At no point should you see your Sprint phone number in about phone. Also you should see IMEISV in about phone as well if you've successfully unlocked it. It'll help if you posted the steps you've gone through. Otherwise were just shooting in the dark.
Sent from my SPH-L720 using xda app-developers app
Click to expand...
Click to collapse
From the S5 thread and now here we meet again in a revisit in time. Since I know you own and understand the L720 more than I do, could you please explain to me if this will work on a 4.4.2 NAE rom? I picked up an L720 (bad esn) for $100 and its in pretty great shape. Now I'm looking to unlock it but my experience with Samsung devices are very mild. It came on CM10.2 (4.3.1) and ive slowly caught up with things. So i understand that sadly there is no such thing as downgrading from KK to JB, I was trying to get it stock on JB with no cigar. Elsewhere I found out that you must flash something identical or above. So im planning on flashing an NAE 4.4.2 stock rom (custom recovery flashable) I found in order to attempt to unlock it cause I can't seem to find a 4.4.1 as mentioned in the OP. I flashed the MDC modem and it stuck, so with little knowledge I am assuming that it will stick once I flash this new rom? Correct me if I am going down the wrong path...
EDIT: Great nobody ever mentioned anywhere that the software used on the international unlock is for 64bit only...
Crossvxm said:
From the S5 thread and now here we meet again in a revisit in time. Since I know you own and understand the L720 more than I do, could you please explain to me if this will work on a 4.4.2 NAE rom? I picked up an L720 (bad esn) for $100 and its in pretty great shape. Now I'm looking to unlock it but my experience with Samsung devices are very mild. It came on CM10.2 (4.3.1) and ive slowly caught up with things. So i understand that sadly there is no such thing as downgrading from KK to JB, I was trying to get it stock on JB with no cigar. Elsewhere I found out that you must flash something identical or above. So im planning on flashing an NAE 4.4.2 stock rom (custom recovery flashable) I found in order to attempt to unlock it cause I can't seem to find a 4.4.1 as mentioned in the OP. I flashed the MDC modem and it stuck, so with little knowledge I am assuming that it will stick once I flash this new rom? Correct me if I am going down the wrong path...
EDIT: Great nobody ever mentioned anywhere that the software used on the international unlock is for 64bit only...
Click to expand...
Click to collapse
The software works on 32 bit too. Actually you can even perform the international unlock WITHOUT the tool if you know how to use QPST or DFS. Anyway...
Flash full NAE. Flash MDC modem. International unlock. Domestic unlock. Win.
Sent from my SPH-L720 using XDA Free mobile app
ecs87 said:
The software works on 32 bit too. Actually you can even perform the international unlock WITHOUT the tool if you know how to use QPST or DFS. Anyway...
Flash full NAE. Flash MDC modem. International unlock. Domestic unlock. Win.
Sent from my SPH-L720 using XDA Free mobile app
Click to expand...
Click to collapse
Must be an issue with my PC, nothing new...
And I know a thing or two about QPST. I still have it on my computer from a few days ago from when I was fixing a horribly corrupted IMEI on a G2 a friend of mine bought. I'm assuming I have to use a NAE stock tar with ODIN, because I tried a ROM of it and it lags and stays on black screens for seconds and WiFi doesn't work im sure because of the fact that the modem is older than the rom. Let's see if that works cause ive been trying to flash back to any stock ROM since I got this thing yesterday.
(Almost there...)
NEVER MIND. Got the international part working perfectly by using the Windows Vista partition on my PC. Now reading on, OP mentions that next the domestic unlock must be done, a link is provided there to another thread with domestic unlock instructions. Heres the question. The OP in the other thread mentions to hop onto 4.3 via odin. How can I get to 4.3 to domestic unlock if Odin doesnt let you downgrade?
Crossvxm said:
(Almost there...)
NEVER MIND. Got the international part working perfectly by using the Windows Vista partition on my PC. Now reading on, OP mentions that next the domestic unlock must be done, a link is provided there to another thread with domestic unlock instructions. Heres the question. The OP in the other thread mentions to hop onto 4.3 via odin. How can I get to 4.3 to domestic unlock if Odin doesnt let you downgrade?
Click to expand...
Click to collapse
Read the specifics. You cannot downgrade boot loaders but you CAN downgrade modems.
Unlock just requires MDC or MDL modem.
daniel4653 said:
Read the specifics. You cannot downgrade boot loaders but you CAN downgrade modems.
Unlock just requires MDC or MDL modem.
Click to expand...
Click to collapse
Yeah I remember that part but from what I was understanding, that's for the international. Domestic requires messing with some files and done. I already got the international part by tossing CM10.2 along with the MDC modem because stock Touch wiz would cause lag and reboots and non working wifi I'm assuming because of the mismatched combo. I DO know that obviously we need a TW rom in order to unlock domestic.
EDIT: I finally got the hint and got it to work. But I only get Edge instead of 3G. Does anyone know where I may be able to find that T-Mobile rom made for us? When I Google it I end up on the T-Mobile side.
Crossvxm said:
(Almost there...)
NEVER MIND. Got the international part working perfectly by using the Windows Vista partition on my PC. Now reading on, OP mentions that next the domestic unlock must be done, a link is provided there to another thread with domestic unlock instructions. Heres the question. The OP in the other thread mentions to hop onto 4.3 via odin. How can I get to 4.3 to domestic unlock if Odin doesnt let you downgrade?
Click to expand...
Click to collapse
I downgraded from latest bootloader on 4.4.2 or was it 4.4.4? Down to 4.3 which is the absolute best ROM version for service mode menu. It got me into service mode menu on first try by selecting menu back and input of 1. What I did was first install cf autoroot to root then cwm and used cwm to flash the 4.3 stock deodexed, I only used Odin for flashing modem. Odin gave me an error when flashing modem and phone got stuck in kies mode but i got it to get unstuck by just flashing cf auto root again to make the kies mode error thingy think odin flash has went well. Turns out MDC modem flashed despite odin error.
Anyways. While on 4.3 and MDC modem I noticed no WiFi but I had sound. I followed the international and domestic unlock instructions and WiFi was still broke when I got back to 4.4.2 but I had unlock and sim card working and got bars. I am on aosp 4.4.4 now and the nae modem I finally flashed works well with this ROM but soon I gotta go to touchwhiz 4.4.4. If I go to 4.4.4 touch whiz WiFi and all else will work fine just as they do on slim aosp . 4.4.2 touchwhiz is still not giving me wifi on NAE modem. Update NAE 4.4.2 stock deodexed rooted rom i got from xda android thread did the trick and all works well now. All is perfectly working after i flashed it in cwm.
For aosp lovers. aosp requires additional things to do so aosp dialer can make and receive calls fine. I can call but there are issues until I follow another guide on xda that resolves those issues on aosp ROMs using sprint s4.
http://forum.xda-developers.com/showthread.php?t=2539794
If you see system slow, no wifi, no audio and lockscreen being nearly impossible to unlock, its due to you being on a higher ROM than the modem was meant for.
was messing around with the advance signal status and messed up my verizon Droid Turbo. I went into additional info > phone information and selected the" select radio radio" option from the top right option menu. Selected on cellular and all network connectivity vanished. I tried to fix the issue with messing about with other settings on the app, nothing seemed to work. Did a factory reset and its still not showing any networks on global mode or any other mode. Can anyone please help me out with this? The phone isn't rooted so i don't know an app could mess things up this badly
What are some things you messed with? Was it just changing the CDMA and lte setting?
Sent from my HTC6435LVW using XDA Free mobile app
comicmonster said:
was messing around with the advance signal status and messed up my verizon Droid Turbo. I went into additional info > phone information and selected the" select radio radio" option from the top right option menu. Selected on cellular and all network connectivity vanished. I tried to fix the issue with messing about with other settings on the app, nothing seemed to work. Did a factory reset and its still not showing any networks on global mode or any other mode. Can anyone please help me out with this? The phone isn't rooted so i don't know an app could mess things up this badly
Click to expand...
Click to collapse
happens to me too and was the only solution
u must flash the radio from Droid turbo
if doesn t work flash the all firmware
can't flash any firmware on this as its not rooted nor is there a bootloader unlock for the droid turbo as of yet. Only thing i did was go additional info > Phone information > select radio band > Cellular
Could not rever back to original settings after that. I have tried a lot of other apps as well, changed from global to lte/wcdma, gsm modes too.
Maybe the app developer can help you, although it says that is not meant to be used on non rooted phones.
comicmonster said:
can't flash any firmware on this as its not rooted nor is there a bootloader unlock for the droid turbo as of yet. Only thing i did was go additional info > Phone information > select radio band > Cellular
Could not rever back to original settings after that. I have tried a lot of other apps as well, changed from global to lte/wcdma, gsm modes too.
Click to expand...
Click to collapse
u can flash the original radio without root o bl unlocked
and the firmware too
Idk of this will work because it's the older firmware for this phone but try flashing it then updating back to the current firmware. Worth a shot!
http://forum.xda-developers.com/showthread.php?t=2929737
Ahmad Raza
Hey Guys ! . Dont worry if u select radio band to cellular. Here i give u solution .
If ur mobile is verizon
then simply connect your phone with pc with data cable , then install software of verizon update assistant by clicking on a drive showing in My computer and also enable the option of software installation from your mobile .
Next step is opening the program verizon assistant.
Here u have to run the repair process.
this take 5-10 minutes.
After 10 minutes your mobile will reboot automatically.
and U will get your signals back ... Comment if this help u.
experience
i did the same thing...
what worked for me is to use fastboot to flash the whole thing from scratch.
use this guide:
https://www.youtube.com/watch?v=6avEPGWB8E0
it gives links to everything you'll need.
good luck!
Please wait for tomorrow I will post a video and also a Lolipop rom since everyone wants it THIS WILL DELETE EVERYTHING OFF YOUR DEVICE
AND IF YOU HAVE L720T ONLY WITH 5.0 OR HIGHER THIS WONT WORK FOR YOU SORRY
i also have the unlock for the lg g2 HERE
and also the lg g3 HERE
lets start with
(DO NOT SKIP ANY STEPS FOR ANY REASON )
first if you have l720 you need to be on version 4.4.2 or lower if not you have to downgrade from HERE
if you are l720t with lollipop then you are out of luck
SO YOU WILL NEED COUPLE OF THINGS
FIRST LETS START WITH FILES YOU NEED ON YOUR COMPUTER
1.odin
2.l720:ROOT (IMPOTANT) YOU WILL NOW WHY
l720t:ROOT (IMPOTANT) YOU WILL NOW WHY
2.TWRP (SAME ONE FOR BOTH DEVICES)
3.for l720:SPH-L720_MDC_Modem.tar.md5
for l720t:SPH-L720t_mk5_Modem.tar
2nd what you will need on your device
1.SSU.apk
2.stock m919 rom (this is important for 4g/lte)
(this will also make your phone 100% stock tm)
alright lets start
first flash the modem and the root though odin
turn off the phone then press and hold the vol- and home and power and the same time then press vol+ when it ask you to continue
then plug in the phone to the pc
put the root in the PDA/AP selection
and put the modem in the "phone" selection and press start wait for it
you phone should reboot into a red screen wait for it to finish it will reboot by it self.
now open the supersu and disable Knox(important) if you don't you will have problems in the service later on
now install SSU.apk and open it and tap "UNLOCK"
now go to dialer and dial *#0011#
now it should go into a page with writing on it now tap menu and select back <-(do this twice)
now tap menu and tape key input and put a capital Q
and tap OK
now tap menu again and tap key input and put 0000 (four zeros) and tap OK and wait for a new screen to come on
now tap umts
(to go back tap menu then back (DO NOT PRESS THE BACK BUTTON))
UMTS Main Menu
1 Debug Screen -> 6 Phone Control -> 1 DRX Control = GSM DRX: ON / LTE DRX: Enables RX0 and RX1
1 Debug Screen -> 6 Phone Control -> 2 Fake Security Control = ON
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 1 Ciphering Control = OFF
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 2 Integrity Control = ON
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 3 Sim Class Control = UMTS
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 5 RRC(HSPA) Contrl -> 2 Change Revision -> 5 Release 8 (HSPA+)
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 7 NAS Avoid Security Control = 2 Security_check: OFF
1 Debug Screen -> 6 Phone Control -> 3 Nas Control -> 8 BIP Block = 2 BIP Unblocking: set 1
1 Debug Screen -> 6 Phone Control -> 5 Simulation -> 2 SW Watchdog <--hit this 6 times
1 Debug Screen -> 6 Phone Control -> 5 Simulation -> 3 HW Watchdog <--hit this 6 times
then go back to the first page and tape CDMA then common then tap next page twice then tap 8 pref mod set and tap 2 GSM_WCDA
now reboot
Congrats
now your phone is unlock but only 3g
so now make sure your phone picks up signal before keep going
now comes the 4g/lte part
make sure you have the rom on the phone
now go into download mode again and put the TWRP.tar into the PDA/AP selection and uncheck autoreboot
now hit start and wait for the loading to finish after it says PASS
now take out your battery and wait 10 sec then put it in then press vol+ and home and power at the same time now you should see TWRP screen wait then tap wipe then slide to factory reset then press home then tap install the choose the m919 rom that you have downloaded then slide to install
after its done tape wipe cache/devilk then slid to wipe the just restart your device
Congrats now your phone is fully unlock with 4g/lte and you should be set for life :good::good::good::good::good:
please donate
paypal: [email protected]
their you have it , have fun guys
IF YOU HAVE L720 AND YOU WANT TO GO BACK TO SPRINT FOR SOME REASON JUST DO THE DOWNGRADE
Error
Thanks for the post, I have been trying this for a few days without success.
I hit a couple of snags after being rooted and installing the modem image as per your instructions.
1. I can't disable knox, are there more details you can provide?
2. ssu doesn't run it says "unfortunately, SSU has stopped".
I went through the dialer options anyway just to see what would happen and it appears that I still get a invalid sim card without the ability to enter the unlock code.
I figured I would do all the steps again in order to have a clean install once it's all tested and working but no luck.
Also in the step where you say "1 Debug Screen -> 6 Phone Control -> 5 Simulation -> 2 SW Watchdog <--hit this 6 times" should I basically exit the dialer with back at that moment since going back many times doesn't get me back to the menu's?
One other question, I see this is android 4.2 if I do a firmware update from T-Mobile taking it to Lollipop will I loose the functionality of the phone/modem?
Thanks!
MiamiMike said:
Thanks for the post, I have been trying this for a few days without success.
I hit a couple of snags after being rooted and installing the modem image as per your instructions.
1. I can't disable knox, are there more details you can provide?
2. ssu doesn't run it says "unfortunately, SSU has stopped".
I went through the dialer options anyway just to see what would happen and it appears that I still get a invalid sim card without the ability to enter the unlock code.
I figured I would do all the steps again in order to have a clean install once it's all tested and working but no luck.
Also in the step where you say "1 Debug Screen -> 6 Phone Control -> 5 Simulation -> 2 SW Watchdog <--hit this 6 times" should I basically exit the dialer with back at that moment since going back many times doesn't get me back to the menu's?
One other question, I see this is android 4.2 if I do a firmware update from T-Mobile taking it to Lollipop will I loose the functionality of the phone/modem?
Thanks!
Click to expand...
Click to collapse
Which version are you on and is it L720 or l720t
Disabling k ow is part of supersu so just look up another way to root your device and when you root it it's should ask you if you want to disable know just hit ok and the watchdog thing it's OK just reboot .
nfsmww said:
Which version are you on and is it L720 or l720t
Disabling k ow is part of supersu so just look up another way to root your device and when you root it it's should ask you if you want to disable know just hit ok
Click to expand...
Click to collapse
L720, but it never asked to disable it. Running Android 5.0.1
Also, SSU doesn't run ( I'm guessing in Lollipop ).
So I got everything working on my L720T.. My only concern is that will I be stuck on 4.3 if I want to keep LTE? I noticed the ROM I installed was actually a T-Mobile rom, any chance I could use a Lollipop T-Mobile ROM? Or is this version made to work with L720/L720T?
Hi i bought the s4 at first i didn't know if it was rooted or not but further investigations i found out it was rooted. The phone doesn't have that ssu apk nor superuser.apk which is kinda odd i ran apps that require root access and they worked fine i didn't receive any pop ups to allow access or block. I want to install a rom for which i need to install a recovery now my question is do i have to root again?
Q. How do i know what modem is currently installed ?
Q. Also at first i could see my carrie's name in notification bar now i see sprint is it locked again i can still use my sim and i am getting signals
Pease help i'm new to flashing modems.
Thanks in advance
sameer9092 said:
Hi i bought the s4 at first i didn't know if it was rooted or not but further investigations i found out it was rooted. The phone doesn't have that ssu apk nor superuser.apk which is kinda odd i ran apps that require root access and they worked fine i didn't receive any pop ups to allow access or block. I want to install a rom for which i need to install a recovery now my question is do i have to root again?
Q. How do i know what modem is currently installed ?
Q. Also at first i could see my carrie's name in notification bar now i see sprint is it locked again i can still use my sim and i am getting signals
Pease help i'm new to flashing modems.
Thanks in advance
Click to expand...
Click to collapse
Best thing to do is start over and just follow every step by step you should have unlock just do what I told you in the thread , just go slow step by step I explained everything you Don't need to check anything
davorsake said:
So I got everything working on my L720T.. My only concern is that will I be stuck on 4.3 if I want to keep LTE? I noticed the ROM I installed was actually a T-Mobile rom, any chance I could use a Lollipop T-Mobile ROM? Or is this version made to work with L720/L720T?
Click to expand...
Click to collapse
You could but the phone is going to lag a lot and freeze my friend did that but sometimes it just freezes
MiamiMike said:
L720, but it never asked to disable it. Running Android 5.0.1
Also, SSU doesn't run ( I'm guessing in Lollipop ).
Click to expand...
Click to collapse
You need to downgrade from the link I have in the post please guys don't skip steps and read carefully
doing the rooting process again won't harm phone right
nfsmww said:
You need to downgrade from the link I have in the post please guys don't skip steps and read carefully
Click to expand...
Click to collapse
I did downgrade the modem 100% as the instructions state, but in the end the sim card doesn't work.
Running Lollipop 5.0.1 SSU won't run, so I can't do the "unlock" part.
sameer9092 said:
doing the rooting process again won't harm phone right
Click to expand...
Click to collapse
You have to consider your warranty and carrier support if you root your phone.
I have rooted my phones hundreds of times without issues.
Pretty much everyone on this site I'm sure can say the same.
As long as you are careful to follow instructions you should be fine.
MiamiMike said:
I did downgrade the modem 100% as the instructions state, but in the end the sim card doesn't work.
Running Lollipop 5.0.1 SSU won't run, so I can't do the "unlock" part.
Click to expand...
Click to collapse
Downgrade your firmware not your modem , I am talking about downgrading them both READ CAREFULLY FOR GOD'S SAKE
nfsmww said:
Downgrade your firmware not your modem , I am talking about downgrading them both READ CAREFULLY FOR GOD'S SAKE
Click to expand...
Click to collapse
You are correct, I started in the download section of the instructions missing the first important part to downgrade first!
New Issue: Image provided IOdin executable fails several times, I use Odin so I'm familiar with the process, do you have an image onlY?
Let me ask you, once I go through the process can I upgrade to Lollipop OTA from TMobile or some other ROM without breaking the modem functionality?
Thanks!
MiamiMike said:
You are correct, I started in the download section of the instructions missing the first important part to downgrade first!
New Issue: Image provided IOdin executable fails several times, I use Odin so I'm familiar with the process, do you have an image onlY?
Let me ask you, once I go through the process can I upgrade to Lollipop OTA from TMobile or some other ROM without breaking the modem functionality?
Thanks!
Click to expand...
Click to collapse
I don't get it do u want Lolipop or ur phone working just do it and not you will have 4.4.2
We're only asking questions that we assume you would have the answer to. No need for hostility.
I have completed the steps EXACTLY as written twice without success.
Has anyone been able to accomlish this?
MiamiMike said:
I have completed the steps EXACTLY as written twice without success.
Has anyone been able to accomlish this?
Click to expand...
Click to collapse
This can be accomplished but not with his guide for he is missing some steps. Most likely copied and pasted from another thread found here:
http://forum.xda-developers.com/showthread.php?t=2530610
Use this ^ if you wish for a Domestic Unlock and a International Unlock.
Then if you want 4G LTE just follow this guides flashing of the M919 Stock ROM which is from the T-Mobile Galaxy S4.
Enjoy~
HermitDash said:
This can be accomplished but not with his guide for he is missing some steps. Most likely copied and pasted from another thread found here:
http://forum.xda-developers.com/showthread.php?t=2530610
Use this ^ if you wish for a Domestic Unlock and a International Unlock.
Then if you want 4G LTE just follow this guides flashing of the M919 Stock ROM which is from the T-Mobile Galaxy S4.
Enjoy~
Click to expand...
Click to collapse
Thanks! This worked!!!, a few kinks and I may simply redo the process to be safe since there are a lot of steps.
If I put lolipop on here will I then trash it?
Since I'm not at the Ninja level on this, couldn't someone create a AOKP rom with a clean AOSP, drop in the drivers from the sprint phone ( which I beleive are really just the modem ) using the downgraded modem already unlocked and create a custom ROM? Then the user can get the benefits of keeping up with Android updates more frequently while using there hardware on the GSM platform? ( wow thats a long question )
MiamiMike said:
Thanks! This worked!!!, a few kinks and I may simply redo the process to be safe since there are a lot of steps.
If I put lolipop on here will I then trash it?
Since I'm not at the Ninja level on this, couldn't someone create a AOKP rom with a clean AOSP, drop in the drivers from the sprint phone ( which I beleive are really just the modem ) using the downgraded modem already unlocked and create a custom ROM? Then the user can get the benefits of keeping up with Android updates more frequently while using there hardware on the GSM platform? ( wow thats a long question )
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Lollipop will work on it, the latest it has is the OD2 firmware which is Android 5.0.1 if I'm not mistaken. I'm using the exact one and it still works. As for custom roms, you can use any since the modem is just a plugin of a sort. So if you want to do that all you need is to stay on the MDC modem make sure you are unlocked and working with T-Mobile or what ever carrier. THEN flash over to the AOSP/AOKP or what ever rom you want and it should work. The only reason you need to be on stock firmware is to do the Unlocking via Dialer Secret codes. But after that you should be working perfectly fine with AOSP/AOKP. If I remember correctly there should be a GPE (Google Play Edition) rom somewhere in the Dev forum for GS4 have a look around!
Good luck.