Modem issues - T-Mobile Samsung Galaxy S6

Alright well I flashed the new COF6 modem on 5.0.2 AOCG and when I make calls it takes a good 30 seconds or more for the call to go through, sometimes it won't even go through. Incoming calls are hit or miss, sometimes it just says the wireless caller you are trying to contact is unavailable.
So I tried to odin back to the AOCG 5.0.2 modem and is passes in Odin but then when the phone boots up it says baseband unknown with a X through the signal bars. Tried to odin the full 5.0.2 firmware and same thing, unknown baseband. I did a full wipe before I tried the full 5.0.2 firmware. Not sure what's going on. Any help is greatly appreciated!
Sent from my SM-G920A using XDA Free mobile app

Are you shutting the phone down manually and booting into download mode?

Yes, tried both ways, manually and booting DL from TWRP. I Just odined the full 5.1.1 and now I lost domestic sim unlock, what a PITA.

Quickvic30 said:
Yes, tried both ways, manually and booting DL from TWRP. I Just odined the full 5.1.1 and now I lost domestic sim unlock, what a PITA.
Click to expand...
Click to collapse
Yeah that was the next thing to do. Don't know how you lost sim unlock though

Downloading Metro pcs firmware now, done with this T-mobile unlock app crap :thumbup:

Quickvic30 said:
Downloading Metro pcs firmware now, done with this T-mobile unlock app crap :thumbup:
Click to expand...
Click to collapse
That's what I did. The TMO device unlock is certainly buggy!

guyd said:
That's what I did. The TMO device unlock is certainly buggy!
Click to expand...
Click to collapse
Wish I would have done the metro pcs firmware unlock sooner, this is great plus it's a permanent unlock solution unlike the T-mobile unlock bs lol
Sent from my SM-G920T1 using XDA Free mobile app

Quickvic30 said:
Wish I would have done the metro pcs firmware unlock sooner, this is great plus it's a permanent unlock solution unlike the T-mobile unlock bs lol
Click to expand...
Click to collapse
Just remember to never flash a T-Mobile radio, or it will re-lock the sim!
The Metro radios work fine with T-Mobile and AT&T networks.

guyd said:
Just remember to never flash a T-Mobile radio, or it will re-lock the sim!
The Metro radios work fine with T-Mobile and AT&T networks.
Click to expand...
Click to collapse
Yep read that a while ago. Seems like to be about the same if not better signal than the T-Mobile radio. :good:

Related

[Q] (Unactivated) Sprint HTC One can I Sim unlock to use Gsm

How to sim unlock my Sprint HTC One so I can use it for GSM networks but is unactivated. How can I manually activated without calling or paying sprint. here's the link where the sim unlock process http://forum.xda-developers.com/showthread.php?t=2586704 I tried but won't work
Its Rooted and running on viper Rom 3.5.0
Unlocked bootloader
Android 4.3
I bought it second hand clean esn but unactivated
htconesprint said:
How to sim unlock my Sprint HTC One so I can use it for GSM networks but is unactivated. How can I manually activated without calling or paying sprint. here's the link where the sim unlock process http://forum.xda-developers.com/showthread.php?t=2586704 I tried but won't work
Its Rooted and running on viper Rom 3.5.0
Unlocked bootloader
Android 4.3
I bought it second hand clean esn but unactivated
Click to expand...
Click to collapse
You answered your own question. Just read the first page of the thread, I have explained how to unlock it on 4.3
Sent from my HTCONE using Tapatalk
Ok I haven't tried 3rd method but I'll give it a shoot.. I don't matter if Is not activated ?
htconesprint said:
Ok I haven't tried 3rd method but I'll give it a shoot.. I don't matter if Is not activated ?
Click to expand...
Click to collapse
Activate it with Sprint? Why, do you wanna use it with a GSM SIM or not??
Sent from my HTCONE using Tapatalk
elvisypi said:
Activate it with Sprint? Why, druins ou wanna use it with a GSM SIM or not??
Sent from my HTCONE using Tapatalk
Click to expand...
Click to collapse
I want to use it for GSM. I'm currently downloading the ruu I'll notify you when it works
htconesprint said:
I want to use it for GSM. I'm currently downloading the ruu I'll notify you when it works
Click to expand...
Click to collapse
I would like to know if this will work on an unactivated brand new device as well as I am about to purchase one for use in Asia. But my decision will be based on your results, good luck ?
hatlesssandman said:
I would like to know if this will work on an unactivated brand new device as well as I am about to purchase one for use in Asia. But my decision will be based on your results, good luck ��
Click to expand...
Click to collapse
Elvis method doesnt work ....is there a other way to activate my htc one
I tried to downgrade and unlock it i put my h20 sim card then for awhile it said no signal limited service
htconesprint said:
Elvis method doesnt work ....is there a other way to activate my htc one
I tried to downgrade and unlock it i put my h20 sim card then for awhile it said no signal limited service
Click to expand...
Click to collapse
The unlock works 100%. If you don't see "SIMLock enabled" than it was successful. Probably the phone doesn't support your phone's frequencies. Don't jump directly to the last solution, read the thread thouroughly
Sent from my HTCONE using Tapatalk
Ive been doing the process over and over again and simlock is still visible on the secret menu .... Elvis ive followed your guide perfectly i even know all the steps by memory ...if it helps here is the htc one imei 990001460590706
Please heeelp me
Delete your IMEI please, it's not wise showing it to everybody. If you did get s-off and than downgraded, did you root your phone and than tried the "Sprint HTC One SIM unlock helper" app? What did the app say? I'm sure you didn't do some steps otherwise your phone would be unlocked. Hundreds of people have unlocked their phone this way. If the "SIMLock" message doesn't go away you probably don't have a sprint one
Sent from my HTCONE using Tapatalk
The Sprint HTC one has blocked the carrier id's for domestic use aka att etc.. You can however if your s-off you can flash the initial release radio the first radio when the Sprint HTC was released and it will allow you to connect to domestic carriers. Here is the first radio released http://d-h.st/HHD I can pick up T-Mobile and att using the initial release radio, it is the only radio I could get to pick up signal with. The radio may be the reason your thinking that its not working, With any other radio you will get no signal and no networks avail. Your probably unlocked if you followed what elvisypi said, your just using the wrong radio. I would try flashing that radio and see what happens, I am in Ohio so i am using domestic carriers. Also make sure there bands in your area are covered.

[TRIAL] T-Mobile S6 Permanent Unlock by Code

After doing some research and doing a little bit or reading, the HTC ONE M9 T-Mobile variant has the same unlocking issues as The T-Mobile S6 and S6 Edge where the software only allows for an unlock through the unlock app and will reject any unlock codes. However, flashing the International model's firmware will rid of this road block and allow for an unlock (HTC ONE M9). I wanted to try the same method with the Galaxy S6.
Wanted to ask if a brave soul who has rooted and flashed TWRP on their T-Mobile S6 could buy an unlock code, flash the XtreStoLite Pure Edition rom from the regular S6 forums and try unlocking the phone with the international rom on it. Again, this method worked with the TMobile HTC ONE M9 and will likely work for the S6. I would try it myself but I have the edge and we dont really have any ROMS at all.
Also a heads up, if you do try and it doesn't work, wait until the dev of XtreStoLite Pure Edition updates the rom to add back some important files. it may be missing some important system APk for the unlock just like its missing important APK that enables LTE
I was thinking this exact thing. I wonder if it will work...i mean if it worked on the HTC One M9, it should be the same in this situation. Also since its just a software thing, i wonder if there is a flag we can set to trick it into being unlocked as well. Thoughts?
serialtoon said:
I was thinking this exact thing. I wonder if it will work...i mean if it worked on the HTC One M9, it should be the same in this situation. Also since its just a software thing, i wonder if there is a flag we can set to trick it into being unlocked as well. Thoughts?
Click to expand...
Click to collapse
Tried this already and it does *not* work.
All codes are unsuccessful with unlocks.
We need kernels!
Of course if I were in the market for the M9, I'd just buy it from ATT since its bootloader is unlockable from HTCDev. Or did they change that too?
cpufrost said:
Tried this already and it does *not* work.
All codes are unsuccessful with unlocks.
We need kernels!
Of course if I were in the market for the M9, I'd just buy it from ATT since its bootloader is unlockable from HTCDev. Or did they change that too?
Click to expand...
Click to collapse
Still works the same.
Can we flash international firmware?
cpufrost said:
Tried this already and it does *not* work.
All codes are unsuccessful with unlocks.
We need kernels!
Of course if I were in the market for the M9, I'd just buy it from ATT since its bootloader is unlockable from HTCDev. Or did they change that too?
Click to expand...
Click to collapse
'
Ktoonze posted a kernel yesterday - I have not tried flashing the International rom yet - someone said data is not working on it when flashed on N910t? but would love to try to unlock if data is working?
Yeah cant try this myself since the 925t doesn't have any custom roms yet. :-/.
cpufrost said:
Tried this already and it does *not* work.
All codes are unsuccessful with unlocks.
We need kernels!
Of course if I were in the market for the M9, I'd just buy it from ATT since its bootloader is unlockable from HTCDev. Or did they change that too?
Click to expand...
Click to collapse
did you flash the international 920F firmware?
is there anyway to disable to Device Unlock app in App Manager?
osmosizzz said:
did you flash the international 920F firmware?
Click to expand...
Click to collapse
Failed at writing NVRAM.
Tried the Xtrelite rom and did get prompted for code but the code (from cellunlocker.net) did not work.
I dunno, I have a new IMEI since I swapped for an edge. Just going to wait this out and see if it activates in two weeks once the "remorse period" passes.
Do you think it would have worked if you had used the same IMEI that you purchased the unlock code for???
Dude flash metro pcs firmware... don't forget to thank!
noobsaibot34 said:
Dude flash metro pcs firmware... don't forget to thank!
Click to expand...
Click to collapse
Hi, I have the same issue but now Im on t mobile latest firmware, every time I try to flash metro pcs firmware I get an error, something about SW binary error, maybe because metro pcs firmware its older, can you help me to get the new firmware or any workarround? thanks!
jonaspaz07 said:
Hi, I have the same issue but now Im on t mobile latest firmware, every time I try to flash metro pcs firmware I get an error, something about SW binary error, maybe because metro pcs firmware its older, can you help me to get the new firmware or any workarround? thanks!
Click to expand...
Click to collapse
Go to www.sammobile.com and download the latest firmware for metro pcs s6 (SM-G920T1) and that should work for you. according to sammobile tmobile and metro pcs received updated firmware on the same date. downloads on the site take quite some time though, just a FIY.
Quickvic30 said:
Go to www.sammobile.com and download the latest firmware for metro pcs s6 (SM-G920T1) and that should work for you. according to sammobile tmobile and metro pcs received updated firmware on the same date. downloads on the site take quite some time though, just a FIY.
Click to expand...
Click to collapse
Thanks!

Is there a confirmed SIM unlock method yet?

Does flashing the metro pcs ROM and radio, and then using a regular SIM unlock code, for sure work? Or is that hot or miss?
Any other confirmed SIM unlock method?
Sent from my SM-N910T
phositadc said:
Does flashing the metro pcs ROM and radio, and then using a regular SIM unlock code, for sure work? Or is that hot or miss?
Any other confirmed SIM unlock method?
Sent from my SM-N910T
Click to expand...
Click to collapse
Metro PCS ROM has been confirmed to work with regular SIM unlock. I thought I read somewhere that all you really need is the M-PCS Radio, but I can't swear to that.
guyd said:
Metro PCS ROM has been confirmed to work with regular SIM unlock. I thought I read somewhere that all you really need is the M-PCS Radio, but I can't swear to that.
Click to expand...
Click to collapse
Do you know if it achieves permanent unlock, or if it reverts back to locked state if T-Mobile radio is reflashed?
Sent from my SAMSUNG-SM-G850A
phositadc said:
Do you know if it achieves permanent unlock, or if it reverts back to locked state if T-Mobile radio is reflashed?
Sent from my SAMSUNG-SM-G850A
Click to expand...
Click to collapse
It will revert back to locked if you flash back to the TMO Radio. That is my understanding.
Do you by any chance have a link for the post with links and instructions? All I can find are posts of people asking how to unlock. Thank you!

Help needed unlock

Hello
I have unlocked my s6 by using the metro pcs firmware upgrade method .
I have reflashed the t mobile deoxed version rom .
All was working fine until few hours ago when my phone stopped receiving network .
Reboot didnt work too until i switched on wifi back on .
Is it something to really worry about ?
One more queery: once i unlocked my phone does it mean its permanently unlocked to any network because right now im residing in asia .
younussm said:
Hello
I have unlocked my s6 by using the metro pcs firmware upgrade method .
I have reflashed the t mobile deoxed version rom .
All was working fine until few hours ago when my phone stopped receiving network .
Reboot didnt work too until i switched on wifi back on .
Is it something to really worry about ?
One more queery: once i unlocked my phone does it mean its permanently unlocked to any network because right now im residing in asia .
Click to expand...
Click to collapse
I think both questions have the same answer, you can't use any other firmware other than metro pcs. I remember seeing that in a different thread. If you paid it off free and clear call tmobile and they should permanently unlock it for free. I think all you need is your imei or serial number.
So can i reflash the metro pcs firmware and still have the device unlocked ?
I have purchased the unlock code off one of the leading sites on web.
I called T-mobile and pestered the hell out of them and they in return pestered the hell out me, in the end I have an unlocked phone with no flashing this and that.
younussm said:
So can i reflash the metro pcs firmware and still have the device unlocked ?
I have purchased the unlock code off one of the leading sites on web.
Click to expand...
Click to collapse
I can't give you a answer but why not call tmobile like ipaq_101 did? That way you don't need to care what firmware or rom your on, it will be universally unlocked. If long distance calling is a issue you can use the online help, just make sure the first rep you talk to knows you won't stop bothering them until it's unlocked.
Is it not possible to install a ROM and then, say, flash a MetroPCS modem or something? For the record, I'm in the same predicament; I'd like to flash a ROM, but am running stock MetroPCS firmware that allowed me to use an unlock code.
Sent from my Nexus 7 using Tapatalk
phobia09 said:
Is it not possible to install a ROM and then, say, flash a MetroPCS modem or something? For the record, I'm in the same predicament; I'd like to flash a ROM, but am running stock MetroPCS firmware that allowed me to use an unlock code.
Click to expand...
Click to collapse
You can flash any compatible ROM. I Odin flashed the MetroPCS firmware only so that I could permanently unlock the SIM. (I found that the T-Mobile Device Unlock is buggy and not exactly permanent). Then I flashed the international "F" version of Alliance ROM along with UniKernel. Been working great!
As long as you don't ever flash a T-Mobile radio, you'll stay unlocked!

T-Mobile stock firmware on SM-G920T factory unlocked version

I recently purchased the G920T factory unlocked version on eBay, is it safe to Odin any T-Mobile stock firmware, any info will be appreciated, thanks in advance.
Once you above a certain firmware you can't go back. What firmware you currently on?
It is currently on G920TUEU3COK1 can I Odin to the latest T-Mobile G920TUVS3DOJC I understand that I can't go back but is it safe and will it function normally, thanks for the reply.
i have this same question because from what ive read 3COK1 is for Cellular South (aka C Spire). while the 3DOJC is for Tmobile, both under the G920t firmware. are you also on tmobile network with this phone?
What are the benefits of flashing T-Mobile firmware on the USA factory unlocked phone? I have this phone on T-Mobile and wifi calling works. I also get great reception. I assume this phone will get Marshmallow months before T-Mobile releases their build
sebmw said:
It is currently on G920TUEU3COK1 can I Odin to the latest T-Mobile G920TUVS3DOJC I understand that I can't go back but is it safe and will it function normally, thanks for the reply.
Click to expand...
Click to collapse
Does this firmware that the device came with (G920TUEU3COK1) have any carrier branding or logos anywhere? Id like to switch if it doesn't have carrier branding
andreinept said:
Does this firmware that the device came with (G920TUEU3COK1) have any carrier branding or logos anywhere? Id like to switch if it doesn't have carrier branding
Click to expand...
Click to collapse
It has no carrier branding or logos anywhere.
HKSpeed said:
What are the benefits of flashing T-Mobile firmware on the USA factory unlocked phone? I have this phone on T-Mobile and wifi calling works. I also get great reception. I assume this phone will get Marshmallow months before T-Mobile releases their build
Click to expand...
Click to collapse
Are you getting LTE on it.
So I flashed the C Spire firmware and it asked for an unlock code. I flashed back to the original tmobile firmware and it is still locked although it was unlocked before, but the device unlock app says its ineligible for unlock now.
Anybody else encountered this?
Call t mobile customer service and ask them. They can adjust their servers and then the unlock app will work.
tyrone1 said:
Call t mobile customer service and ask them. They can adjust their servers and then the unlock app will work.
Click to expand...
Click to collapse
have you tried it before? because they keep saying that they cant do it
sebmw said:
Are you getting LTE on it.
Click to expand...
Click to collapse
I get LTE. Sometimes get "LTE+". Whatever that means.
andreinept said:
have you tried it before? because they keep saying that they cant do it
Click to expand...
Click to collapse
I'm sorry I misread that this a different model. I'd try to contact the user stifilz to unlock.
andreinept said:
So I flashed the C Spire firmware and it asked for an unlock code. I flashed back to the original tmobile firmware and it is still locked although it was unlocked before, but the device unlock app says its ineligible for unlock now.
Anybody else encountered this?
Click to expand...
Click to collapse
Were you able to get it unlocked? I plan on doing the same, flashing the unbranded to my t-mobile that is currently unlocked.
mon7707 said:
Were you able to get it unlocked? I plan on doing the same, flashing the unbranded to my t-mobile that is currently unlocked.
Click to expand...
Click to collapse
I'd advise that you dont.
To unlock it I had to flash back to the original tmobile rom. From the tmobile rom, the device unlock app failed in different ways.
After i called tmobile over and over I got it unlocked (like 2 hours of calling).
Hurts my heart to see all the tmobile bloat, especially when i dont even live in the US, but at least my phone works
andreinept said:
I'd advise that you dont.
To unlock it I had to flash back to the original tmobile rom. From the tmobile rom, the device unlock app failed in different ways.
After i called tmobile over and over I got it unlocked (like 2 hours of calling).
Hurts my heart to see all the tmobile bloat, especially when i dont even live in the US, but at least my phone works
Click to expand...
Click to collapse
Thank you, I guess I'll just sell this one and buy an international unlocked, glad to hear you got your phone working.
Anyone successfully updated this G920TUEU3COK1 US factory unlocked version to marshmallow? I have Samsung Pay, wifi calling, etc. all enabled on mine and would like to update, but also keep the unlocked non-bloated firmware.
losonn said:
Anyone successfully updated this G920TUEU3COK1 US factory unlocked version to marshmallow? I have Samsung Pay, wifi calling, etc. all enabled on mine and would like to update, but also keep the unlocked non-bloated firmware.
Click to expand...
Click to collapse
Yes its works. However it does add in tmobile bloatware, not bad tho, only about 5 apps
Sent from my SM-G920T using XDA-Developers mobile app
ejbmvp said:
Yes its works. However it does add in tmobile bloatware, not bad tho, only about 5 apps
Sent from my SM-G920T using XDA-Developers mobile app
Click to expand...
Click to collapse
Which method did you use to update the G920TUEU3COK1 US factory unlocked version? Does using the Tmo firmware risk un-unlocking the phone?
losonn said:
Which method did you use to update the G920TUEU3COK1 US factory unlocked version? Does using the Tmo firmware risk un-unlocking the phone?
Click to expand...
Click to collapse
Flashed t-mobile mm via odin. After rebooted it complained about network lock since Im using att sim. I put it back to dl mode. Extracted modem.bin from our 5.1.1 build and Flashed via odin. Bam no more network lock and able to use att sim again.
Followed reddit thread
Sent from my SM-G920T using XDA-Developers mobile app

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