Database Develop

Guide - Unlock XT862 for T-mobile/ATT

Thought I would share based on my experiences on trying to get this phone to work on t-mobile. It works on ATT 3g/T-mobile Edge, but still a pretty cool phone to have.
Also another note, this is a mod that will only go through on Windows. You will need ROOT EXPLORER app for this method to work.
1 - Make sure you are on the stock XT862 ROM, if you aren't flash it via this method found here: http://rootzwiki.com/topic/4370-sbf-droid-3-fastboot-files-55959-and-56890/
2 - Make sure your phone is rooted, if not download the following and follow the steps found here: http://www.psouza4.com/droid3/
3 - Unlock the phone. This can be accomplished by purchasing the unlock code, and later entering the code upon insertion of a sim card. (T-mobile ATT sim cards will work, but you will get an error saying UNLOCK FAILED, this is NORMAL do not freak out)
4 - Download the following files and unzip it to your desktop: http://www.mediafire.com/?y1wjw775v8itsx3
5 - Click Start and open cmd.
6 - Type in the following in cmd:
'cd desktop'
'cd fastboot'
'moto-fastboot flash radio radio.img'
ONCE it flashes, then enter:
'moto-fastboot reboot'
7 - Use root explorer to push the build.prop into the system folder
8 - Reboot, select GSM/UMTS in Network Settings.
AND BAM now it works. If there is any confusion please let me know.

Nice! Is that the XT883 radio you're flashing or a real unlocked (and signed) XT862 radio?
Also - change
Code:
ro.mot.phonemode.vzwglobalphone=1
to
Code:
ro.mot.phonemode.vzwglobalphone=0
in build.prop to get normal reading on signal strength indicator.
You can also change
Code:
ro.telephony.default_network=7
to
Code:
ro.telephony.default_network=3
so phone starts automatically in GSM/UMTS mode after hard reset.

Can anyone confirm that it's running on AT&T with 3G/4G?
Sent from my Droid Razr using xda premium

MeNaCe2s0cieTy said:
Can anyone confirm that it's running on AT&T with 3G/4G?
Sent from my Droid Razr using xda premium
Click to expand...
Click to collapse
it has att 3g bands you can check for yourself over at gsm arena.

leobg said:
Nice! Is that the XT883 radio you're flashing or a real unlocked (and signed) XT862 radio?
Also - change
Code:
ro.mot.phonemode.vzwglobalphone=1
to
Code:
ro.mot.phonemode.vzwglobalphone=0
in build.prop to get normal reading on signal strength indicator.
You can also change
Code:
ro.telephony.default_network=7
to
Code:
ro.telephony.default_network=3
so phone starts automatically in GSM/UMTS mode after hard reset.
Click to expand...
Click to collapse
Thanks man I'll reupload when I get back home with the edited bits . It is the XT883 radio.

Nice Guide!
I've read some people have had trouble unlocking the D3....and apparently it could be due to it being used on the Verizon network who then alter the unlock code via some update.
Anyone know if there is any truth in this? (I'm awaiting the delivery of a used D3 so would be handy to know).

fl4r3 said:
Nice Guide!
I've read some people have had trouble unlocking the D3....and apparently it could be due to it being used on the Verizon network who then alter the unlock code via some update.
Anyone know if there is any truth in this? (I'm awaiting the delivery of a used D3 so would be handy to know).
Click to expand...
Click to collapse
Even after the update, if you restore it to the first link and then follow the steps, you will be fine. It can still be unlocked.

Awesome! I am about to try this on my friend's droid 3. Are there issues with the market (as some have mentioned in a previous thread)?
---------- Post added at 12:10 PM ---------- Previous post was at 12:00 PM ----------
I am stuck on <waiting for device> in the command prompt after telling it to flash the radio. What sort of USB connection should I be selecting?
EDIT: I'm an idiot.... I figured it out!

Is anyone else who is using this method on AT&T experiencing super slow data speeds? I have tried the sim card in an at&t branded phone and it seems to work ok. On the Droid 3, I am getting a ping of 2500~ ms, and speeds in the 15-60kbps range.

I can't seem to add an APN and connect to the 3G network. Does anyone else have this issue? I am using a Bell SIM at the moment

Follow all the steps, no luck here
When I put the unlock code, phone shows for a sec "requesting unlock" and goes back to a subsidy lock message with a discard dialog box.
After that, I followed all other steps, and still enter unlock code appears
Any ideas?
I dont have an att sim card, Im just using foreign sim cards cause Im outside US.

geek_riot said:
Is anyone else who is using this method on AT&T experiencing super slow data speeds? I have tried the sim card in an at&t branded phone and it seems to work ok. On the Droid 3, I am getting a ping of 2500~ ms, and speeds in the 15-60kbps range.
Click to expand...
Click to collapse
You can always call the carrier and make sure they are allowing your phone to connect. I'm not sure if this is the problem, but I read about another AT&T branded 4G phone (the D3 will never get 4G) getting only edge because the carrier thought it was foreign, and they just called in and gave the IMEI number to get access.
The customer service rep may not understand your problem, but just tell them the truth that you want to use your compatible device on your valid account and they should redirect you to someone who can help.
I can verify this works on T-Mobile and AT&T since I've tested it on both. Didn't test 3g on AT&T though cuz I didn't think about it lol. I know it allows the connection to umts in the settings though.
The OP poster helped me get it working on my phone just make sure you follow the directions closely and it's pretty simple. If your unlock codes aren't working because you got them off the internet, you may need to have the phone put on Verizon temporarily to get them to give you a code. Just ask a friend with a valid account to help you out.
Good luck to everyone, this is a great hack that definitely saves some money while letting us use this cool phone. I will have to edit my build.prop as mentioned above to fix the reboot network loss problem, thanks for that as well!
Droid 3 with stock xt862 ROM working on T-Mobile via xt883 radio.img & custom build.prop

If verizon changed the codes while phones are connected to his network, changes could only be stored on a new bootloader.
There is no other unwritable part on the phone.
Wonder if the original poster used an ebay code or a verizon one...

Nice job! Pretty amazing what can be done with fastboot and signed radio images!

Custom ROM
What will happen if somebody follows this procedure and unlock the phone for AT&T but afterwards flash another rom? Will the radio still be unlocked for AT&T?

koukobin said:
What will happen if somebody follows this procedure and unlock the phone for AT&T but afterwards flash another rom? Will the radio still be unlocked for AT&T?
Click to expand...
Click to collapse
As long as that ROM you're flashing does not have radio image in it, you should be fine. If you meant sim lock - once unlocked, it will remain unlocked forever.
Sent from my HTC Desire Z using Tapatalk

I was asking about radio unlock, i know sim unlock is permanent. But has anyone tried to install any rom after the radio unlock and if yes which one?
thanks

koukobin said:
I was asking about radio unlock, i know sim unlock is permanent. But has anyone tried to install any rom after the radio unlock and if yes which one?
thanks
Click to expand...
Click to collapse
Just as @leobg said,
leobg said:
As long as that ROM you're flashing does not have radio image in it, you should be fine...
Click to expand...
Click to collapse
Now, I haven't tried flashing another ROM since flashing the xt883 radio.img, because I really don't mind the stock ROM with some build.prop tweaks and the help of Zeam Launcher. I would assume that any ROM you flash would cause the build.prop and radio.img to be replaced with new ones, made specifically for that ROM. You should probably consult with the developer of the ROM you want to use, and ask them if the build.prop changes specific to this process will have issues with their ROM. The xt883 radio.img shouldn't have any conflicts, but I believe it will still require the custom build.prop file which is found in the OP, or at a minimum the specific changes which allow this tweak to work.

BenSWoodruff said:
Just as @leobg said,
Now, I haven't tried flashing another ROM since flashing the xt883 radio.img, because I really don't mind the stock ROM with some build.prop tweaks and the help of Zeam Launcher. I would assume that any ROM you flash would cause the build.prop and radio.img to be replaced with new ones, made specifically for that ROM. You should probably consult with the developer of the ROM you want to use, and ask them if the build.prop changes specific to this process will have issues with their ROM. The xt883 radio.img shouldn't have any conflicts, but I believe it will still require the custom build.prop file which is found in the OP, or at a minimum the specific changes which allow this tweak to work.
Click to expand...
Click to collapse
Aslongasyoukeeptheradioandbuild.propchnges
Yikesmyspcebarisfiling and some"a's"
Enviado desde mi DROID3 usando Tapatalk

Will loading XT883 radio undo the wifi-hotspot hack?

Lost my network when I set the radio band to US

It was showing me H+ on the top instad of 4g
I did .#*#4636#*#* and changed the band from phone info to USA.
Now I have lost my phone network and its not coming up.
How can I fix it... so that my phone becomes useful :'/

Change it back to the way it was. Your not supposed to change anything besides the part to lte.
Sent from my JokerMATRIX HD MAXX

deeje00 said:
Change it back to the way it was. Your not supposed to change anything besides the part to lte.
Sent from my JokerMATRIX HD MAXX
Click to expand...
Click to collapse
The network is not coming on stock rom too
donno whats goin on.
I m completely lost on what can bring the network back

And this is why we don't mess with things when we don't know what we're doing.
Sent from my JokerMATRIX HD MAXX

swapnil0545 said:
It was showing me H+ on the top instad of 4g
I did .#*#4636#*#* and changed the band from phone info to USA.
Now I have lost my phone network and its not coming up.
How can I fix it... so that my phone becomes useful :'/
Click to expand...
Click to collapse
you have to reflash the modem, no other choice

z0bug22 said:
you have to reflash the modem, no other choice
Click to expand...
Click to collapse
How to flash the modem?
I think d problem is with sim..
Even if I insert it in other cell fone I get no network

swapnil0545 said:
How to flash the modem?
I think d problem is with sim..
Even if I insert it in other cell fone I get no network
Click to expand...
Click to collapse
The problem is not with the sim
Just tested the sim on S3 and its working fine there.
@tcf38012 told me to download fastboot files and restore

you can flash stock rom use RSD lite.

cutdaubac said:
you can flash stock rom use RSD lite.
Click to expand...
Click to collapse
Thank you guyz.
Flashing the stock via RSDLite fixed the problem.
I wonder we should have something like get ril for fixing our radioband problems
thank you anyways

Please help! No network signal anymore
Hello guys!
I am facing the exact problem. I also accidentally selected USA Band in Phone info menu and now not getting network bars anymore. I tried factory resetting but no luck. I am using this Motorola Atrix HD phone in India (SIM unlocked) and its rooted but Bootloader is locked. Its running on Stock JB 4.1.1
As suggested by some folks here to flash Modem or flash Stock ROM via RSD lite, I couldn't find the Stock 4.1.1 or Modem to download. Please help me fix the phone.
Thanks in advance!

I have same problem. Didn't see this topic before making new one.
Files are here:
http://sbf.droid-developers.org/dinara/list.php

mm166 said:
I have same problem. Didn't see this topic before making new one.
Files are here:
http://sbf.droid-developers.org/dinara/list.php
Click to expand...
Click to collapse
Sad to know that you are also facing the same problem like me.
Did you try flashing MB886_att-user-4.1.1-9.8.0Q-97_MB886_FFW-20-27-release-keys-ATT-US_BuildA.xml.zip via RSD Lite? Hopefully it should fix the issue. I tried to download this Stock AT&T ROM but every time I have broken file error.

sony108 said:
Sad to know that you are also facing the same problem like me.
Did you try flashing MB886_att-user-4.1.1-9.8.0Q-97_MB886_FFW-20-27-release-keys-ATT-US_BuildA.xml.zip via RSD Lite? Hopefully it should fix the issue. I tried to download this Stock AT&T ROM but every time I have broken file error.
Click to expand...
Click to collapse
I haven't tried it yet but I plan to try it tonight. I will let you know my results. Fastboot flash modem file didn't help.

mm166 said:
I haven't tried it yet but I plan to try it tonight. I will let you know my results. Fastboot flash modem file didn't help.
Click to expand...
Click to collapse
Good luck buddy! I hope it fixes the annoying issue. I will wait for the result ...

*Removed*
I had to reboot PC. Now it's flashing.
Edit:
It DID work!!! yey!
Good luck guys!
Maybe this can help someone:
http://forum.xda-developers.com/showthread.php?t=2231249

Glade to know that it worked for you ...
By the way which version of AT&T Stock ROM you flashed and was your phone Rooted with the Locked Bootloader?
My AHD is Rooted, Locked Bootloader and on Stock 4.1.1 so am I good to go? Do I need to Un-root it prior to flash through RSD Lite?
Thanks!
Sent from my MB886 using Tapatalk 2
EDIT: I have fixed my rooted but locked AHD. Simply flashed Stock AT&T 4.1.1 using RSD Lite and phone got network signals again :victory:

Sprint GSM Rom for Unlocked Sprin Htc One

I recently unlocked my sprint htc one and im trying to use it on tmobile, everything works, i even get 3g data but the big problem is that the network settings doesnt automatically choose the tmobile network and it disconnects way, way to often, when it disconnects i have to manually search for the network every time as it wont select it automatically. I think that whats needed is a Sprint gsm rom for it to work as it should or maybe a flashable patch. if anybody has the knowledge, i would appreciate it. big thanks!!!

spottarget said:
I recently unlocked my sprint htc one and im trying to use it on tmobile, everything works, i even get 3g data but the big problem is that the network settings doesnt automatically choose the tmobile network and it disconnects way, way to often, when it disconnects i have to manually search for the network every time as it wont select it automatically. I think that whats needed is a Sprint gsm rom for it to work as it should or maybe a flashable patch. if anybody has the knowledge, i would appreciate it. big thanks!!!
Click to expand...
Click to collapse
lol sprint gsm rom is not possible

Flash a gsm rom and see what happens
Don't just kidding
Sent from my HTCONE using Tapatalk 4 Beta

Why not??
flex360 said:
lol sprint gsm rom is not possible
Click to expand...
Click to collapse
The print htc one is a world phone, just like they make roms for the rezound from verizon, which is a world phone as well or the droid 3 global, they make botch cdma roms and gsm roms. So now we need a gsm compatible rom.

LOL
thatotherguy.. said:
Flash a gsm rom and see what happens
Don't just kidding
Sent from my HTCONE using Tapatalk 4 Beta
Click to expand...
Click to collapse
I've tryed hahahha but it wont even let me start the flash

How did you even unlock it for domestic use?
---------- Post added at 06:25 PM ---------- Previous post was at 06:23 PM ----------
Even if you are able to use it with tmobile, go to settings ->Mobile Data -> Network Mode and choose GSM/UMTS only

tryed that
alberto122509 said:
How did you even unlock it for domestic use?
---------- Post added at 06:25 PM ---------- Previous post was at 06:23 PM ----------
Even if you are able to use it with tmobile, go to settings ->Mobile Data -> Network Mode and choose GSM/UMTS only
Click to expand...
Click to collapse
here is the info on how to unlock it http://forum.xda-developers.com/showthread.php?t=2243724&page=97
i've tryed evrything from swithcing it to gsm only, wcdma, it picks up the signal only if i manually click search for networks, thats the only way, and when it disconnects i have to do it over and over again ugghgghhg is crazy cause it disconnects every minute

spottarget said:
here is the info on how to unlock it http://forum.xda-developers.com/showthread.php?t=2243724&page=97
i've tryed evrything from swithcing it to gsm only, wcdma, it picks up the signal only if i manually click search for networks, thats the only way, and when it disconnects i have to do it over and over again ugghgghhg is crazy cause it disconnects every minute
Click to expand...
Click to collapse
are you using a stock rom? if so, maybe try a different rom for the sprint htc one. like one of the CM10 ones, and we are talking about TMobile USA right? or the UK?

alberto122509 said:
are you using a stock rom? if so, maybe try a different rom for the sprint htc one. like one of the CM10 ones, and we are talking about TMobile USA right? or the UK?
Click to expand...
Click to collapse
Yes T-mobile USA.. I tryed stock and non stock, i also tryed different CM10 but those dont even pick up gsm signal even after selecting it with *#*#4636#*#* and tryed flashin cm10 for international htc one and att, tmobile but wont even let me intall it lol. so im in desperetely need of a spring gsm sense rom or CM10 like they do for verizon world phones :/

spottarget said:
Yes T-mobile USA.. I tryed stock and non stock, i also tryed different CM10 but those dont even pick up gsm signal even after selecting it with *#*#4636#*#* and tryed flashin cm10 for international htc one and att, tmobile but wont even let me intall it lol. so im in desperetely need of a spring gsm sense rom or CM10 like they do for verizon world phones :/
Click to expand...
Click to collapse
Hmm, that's weird, I'll unlock my phone later today and go buy a prepaid tmobile phone and try it out

alberto122509 said:
Hmm, that's weird, I'll unlock my phone later today and go buy a prepaid tmobile phone and try it out
Click to expand...
Click to collapse
cool, other ppl have the same problem

The only thing I can think of is to download a gsm Rom and swapout the boot.img and see if it will work. But that's just me taking a guess at it, I'm no developer or anything
Sent from my HTCONE using xda premium

interesting
luigi311 said:
The only thing I can think of is to download a gsm Rom and swapout the boot.img and see if it will work. But that's just me taking a guess at it, I'm no developer or anything
Sent from my HTCONE using xda premium
Click to expand...
Click to collapse
ill try doing that maybe it boots .. thanks

Hi,
I'm using Sprint ONE in Bulgaria GSM mode. Phone is unlocked/s-off/rooted with Viper ROM http://forum.xda-developers.com/showthread.php?t=2241016
i have no issues with signal dropping or whatsoever.

nothing yet
straho1 said:
Hi,
I'm using Sprint ONE in Bulgaria GSM mode. Phone is unlocked/s-off/rooted with Viper ROM http://forum.xda-developers.com/showthread.php?t=2241016
i have no issues with signal dropping or whatsoever.
Click to expand...
Click to collapse
Have tryed viper but still my signal drops constantly.. I think we need. Some sort of flashable gsm Patch.

luigi311 said:
The only thing I can think of is to download a gsm Rom and swapout the boot.img and see if it will work. But that's just me taking a guess at it, I'm no developer or anything
Sent from my HTCONE using xda premium
Click to expand...
Click to collapse
Don't flash any Rom unless it's sprint compatible. Intl/other carrier roms have different mount points and will make your phone reboot/drop service with only fix being RUUing
Sent from my HTCONE using Tapatalk 4 Beta

spottarget said:
ill try doing that maybe it boots .. thanks
Click to expand...
Click to collapse
Absolutely not. That's your one-way ticket to RUU-hell land. It's not just differences in the kernel, but also in how the internal storage is partitioned. I'm pretty surprised that even with GSM/UMTS you're having trouble. Anyone know if the stock PRL for the Sprint ROM might be interfering (i.e. the phone is trying to search for one of Verizon's CDMA towers first)?

If anyone wants, just send me the updater-script from a GSM ROM, and I will change the mount points to be for Sprint. Like that you can flash the GSM rom. However, I would like to know if there is anyone brave enough (with S-Off) to flash the firmware bits of the GSM phones (radio, adsp, rpm, and maybe the sbl*; not the bootloader and recovery).
The radio.img is the most dangerous thing... But I think getting the GSM f/w on the GSM-unlocked Sprint phone will be a good thing. Unless, anyone knows that the radios are different? I know the mount points are different, but does anyone have any info on the firmware itself?
Anyway, just let me know if you wanna try to flash a GSM rom, I will update the mount points for you.

Tilde88 said:
If anyone wants, just send me the updater-script from a GSM ROM, and I will change the mount points to be for Sprint. Like that you can flash the GSM rom. However, I would like to know if there is anyone brave enough (with S-Off) to flash the firmware bits of the GSM phones (radio, adsp, rpm, and maybe the sbl*; not the bootloader and recovery).
The radio.img is the most dangerous thing... But I think getting the GSM f/w on the GSM-unlocked Sprint phone will be a good thing. Unless, anyone knows that the radios are different? I know the mount points are different, but does anyone have any info on the firmware itself?
Anyway, just let me know if you wanna try to flash a GSM rom, I will update the mount points for you.
Click to expand...
Click to collapse
I was playing around with qpst and on service programming on the umts tab system there is an option "preceded network selection" and is set to limited, I try changing it but it won't let me write to phone, I think that's what sprint did to limit connection of gsm in USA

ill try it
Tilde88 said:
If anyone wants, just send me the updater-script from a GSM ROM, and I will change the mount points to be for Sprint. Like that you can flash the GSM rom. However, I would like to know if there is anyone brave enough (with S-Off) to flash the firmware bits of the GSM phones (radio, adsp, rpm, and maybe the sbl*; not the bootloader and recovery).
The radio.img is the most dangerous thing... But I think getting the GSM f/w on the GSM-unlocked Sprint phone will be a good thing. Unless, anyone knows that the radios are different? I know the mount points are different, but does anyone have any info on the firmware itself?
Anyway, just let me know if you wanna try to flash a GSM rom, I will update the mount points for you.
Click to expand...
Click to collapse
I think I would try something safe cause up to this point I have tryed everything to keep my tmobile signal from disconnecting but so far no luck.

Domestic Unlock of 4.3 & 4.4.1 (NAE) galaxy s4

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.

[Q] Only Getting GSM on phone

I'm only getting GSM on my HTC ONE M7
not 4G or anything
sucks cause i can't even download a pic
any help on how i can fix this?
yes its rooted

Settings >> Mobile Data >> Network Mode

Y_C said:
I'm only getting GSM on my HTC ONE M7
not 4G or anything
sucks cause i can't even download a pic
any help on how i can fix this?
yes its rooted
Click to expand...
Click to collapse
I am getting exactly the same problem. I have T-Mobile, I already flashed the radio with a ton of apn settings and it's not helping.

BNMotive said:
I am getting exactly the same problem. I have T-Mobile, I already flashed the radio with a ton of apn settings and it's not helping.
Click to expand...
Click to collapse
Be careful messing with radio's, that's one thing if you get wrong will kill your phone forever, you must have a 4G enabled phone (M7_UL) have a look for this in the bootloader and also a 4G enabled sim, your network provider will provide you with one if your paying for a 4G service.

Seanie280672 said:
Be careful messing with radio's, that's one thing if you get wrong will kill your phone forever, you must have a 4G enabled phone (M7_UL) have a look for this in the bootloader and also a 4G enabled sim, your network provider will provide you with one if your paying for a 4G service.
Click to expand...
Click to collapse
I have the m7_UL, I currently have 3 apn settings available. Two are for lte other one is straight talk. I set the phone to lte as the preferred signal. I also received recently a 4g plan with 4g.
I'm going to try my family's sim cards, they run on 4g.

Tried mine on their phones and theirs on mine. All sim cards run on 4g. What could be wrong with my m7?

BNMotive said:
Tried mine on their phones and theirs on mine. All sim cards run on 4g. What could be wrong with my m7?
Click to expand...
Click to collapse
Are you running stock rom or a custom rom ?

http://forum.xda-developers.com/htc...lollipop-unofficial-cm12-android-5-0-t2943826

BNMotive said:
http://forum.xda-developers.com/htc...lollipop-unofficial-cm12-android-5-0-t2943826
Click to expand...
Click to collapse
custom rom could easily be the fault, unstable or corrupt lib or system files etc, go back to stock to be sure.
EDIT: pulled from post 1: All basic functions should be intact. But DO expect there to be bugs. This is an early build.

I'll give it a go

BNMotive said:
I'll give it a go
Click to expand...
Click to collapse
Lots of people in that thread cant get 4G working, open the thread from your original link and in the search this thread box just type 4G, you'll see all the problems, read a couple of pages myself, its a very buggy rom ATM.

If your looking for a 5.0 rom then you could try DU or AICP. Both last i knew had LTE working in them. CM12 is not gonna be the most stable at the moment.

Seanie280672 said:
custom rom could easily be the fault, unstable or corrupt lib or system files etc, go back to stock to be sure.
EDIT: pulled from post 1: All basic functions should be intact. But DO expect there to be bugs. This is an early build.
Click to expand...
Click to collapse
i'm running stock
4.3

sorry for delay
got back to running a modified version of T-mobile's stock rom, I got 4G speeds and even Wifi calling, my camera was not working for 2 years and this rom seems to have fixed it too. I am very satisfied at the moment, here is to hope that the non t-mobile Lollipop update comes with 4G capabilities as well.
here is a link to the rom I installed http://forum.xda-developers.com/showthread.php?t=2499452