Develop Bugs

how to tell which carrier a gnex is locked to

Got phone from eBay and gives me a sim locked error but there is but no branding to identify who it is locked to. Any suggestions?

You can't go into the about phone section and check the software info/ baseband?
Sent from my HTC PH39100 using xda premium

Model: galaxy nexus
Android ver: 4.0.2
Baseband: I9250XXKK6
Kernel: 3.0.8-gaaa2611 [email protected] #1
Build num: ICL53F
Does any of this help?

No, not at all. That's stock right there.
To be honest I didn't knew that gnex were even sold carrier locked. Did you try doing a OEM unlock and just reflashing some other ROM or stock ROM again to see if start working?
Sent from my Galaxy Nexus using xda premium

some nexus sold in europe are carrier locked and can be problematic to unlock even with the right unlock code. Flashing roms will not sim unlock your phone. the only way is to buy a code online or get one from the carrier the phone was sold from.

neotekz said:
some nexus sold in europe are carrier locked and can be problematic to unlock even with the right unlock code. Flashing roms will not sim unlock your phone. the only way is to buy a code online or get one from the carrier the phone was sold from.
Click to expand...
Click to collapse
This is what I assumed from reading other forums, but since it has no branding I do not know which carrier it is originally locked by.

How did you buy a phone without knowing it was unlocked first
its gonna be hard. you need to contact the seller. based on the info above its just bone stock 4.0.2...

So the buyer tells me that he got it from a google employee and that it was tested before he sent it. Can I call Google or Samsung to get more info?

After pulling up fastboot I find some other strange things. First it tells me CARRIER INFO - none. SIGNING - production. And under the development options it shows me a Developer Device ID. Does this sound like a somehow locked gnex or is all that normal?

Well, there are several ways of doing this;
1. You go into the bootloader (either using the ADB or via PWR + Vol. up + Dwn buttons) There it says "Carrier Info" (Name of carrier)
2. You say, of fu** this. Then you just flash the firmware directly from the Samsung Website...
3. OR you get a SIM card, from every carrier in the world and try it that way...
To be honest, I'd go for the flash Here is the link for the firmware
I now have only one thing to say: If none of these options work (Which they will, though) I'll scoff a mop...

familyguy59 said:
Well, there are several ways of doing this;
1. You go into the bootloader (either using the ADB or via PWR + Vol. up + Dwn buttons) There it says "Carrier Info" (Name of carrier)
2. You say, of fu** this. Then you just flash the firmware directly from the Samsung Website...
3. OR you get a SIM card, from every carrier in the world and try it that way...
To be honest, I'd go for the flash Here is the link for the firmware
I now have only one thing to say: If none of these options work (Which they will, though) I'll scoff a mop...
Click to expand...
Click to collapse
awesome tip, thanks. Do I need to have the bootloader unlocked before flashing this or will this work on any gnex?

3650freak said:
So the buyer tells me that he got it from a google employee and that it was tested before he sent it. Can I call Google or Samsung to get more info?
Click to expand...
Click to collapse
So the seller didn't have a SIM in it?
Sent from my Galaxy Nexus i9250

Sending it back, bug thanks to everyone for all of the tips and suggestions.

3650freak said:
Sending it back, bug thanks to everyone for all of the tips and suggestions.
Click to expand...
Click to collapse
so, in the end, do you know which carrier is it?

[Q] Have unlocked Galaxy s3 and have a few questions

I just baught an unlocked galaxy s3. The guy i baught if from didnt know what carrier it came from or anything. So i was wondering if i flash a rom will i lose my unlock? Is there any way that i could accidently lose my unlock? How do i find out where this phone came from? And what if i do an update from the settings> about tab if there is one in the future?
Sent from my SGH-I747M using xda app-developers app

You can flash as many ROMs as you want, you will not loose the unlock. You can check where the phone came from by the software code, but don't bother with it. Go to sammobile.com download latest software for your carrier and flash it with Odin. If you want to root it and try some jelly bean ROMs you can get rooted software for your carrier here: http://forum.xda-developers.com/showthread.php?t=1739426

Irfdiddy said:
I just baught an unlocked galaxy s3. The guy i baught if from didnt know what carrier it came from or anything. So i was wondering if i flash a rom will i lose my unlock? Is there any way that i could accidently lose my unlock? How do i find out where this phone came from? And what if i do an update from the settings> about tab if there is one in the future?
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
usually you can check the model no. on the back of the phone under battery and google search it for the service....

Unlocked Updates but AT&T?

I'm looking for an unlocked Note II and have found one for a reasonable price but it's an AT&T version although it is indeed unlocked. Will I get updates at the same time as the international version or would I have to wait for an AT&T update?
Also, is it possible to flash/sideload the 4.2 camera apk without rooting?

Zecharixs said:
I'm looking for an unlocked Note II and have found one for a reasonable price but it's an AT&T version although it is indeed unlocked. Will I get updates at the same time as the international version or would I have to wait for an AT&T update?
Also, is it possible to flash/sideload the 4.2 camera apk without rooting?
Click to expand...
Click to collapse
You'll get the updates when the ATT version gets the update. The upgrade really goes by Model number and then region. Your model number is still SGH-I317.
Being unlocked just enable you to use a non-att sim card

Correct if it's just unlocked, you should have no problem getting updates.
If it's unlocked and a good deal, I assume you getting it from a private seller. Just be careful not to buy a stolen phone, they will block it by IMEI.

Just get one that is locked and unlock it yourself. Don't pay extra for one that's unlocked. There is a thread here on xda that shows you how to unlock the GN2 jus by entering a few codes.
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

Yes, you can flash 4.2 camera with no problems. I did.
Sent from my SAMSUNG-SGH-I317 using xda premium

If I did get the SGH ATT model, could I flash the N7100 stock image to it without rooting? If so, how would I do it?
And someone said the 4.2 camera can be flashed without root. How is this done?

You need to do some searching and reading, all the information you need can be found here on XDA.
But before you get in to trouble flashing I will tell you that you should not flash a ROM that is not made for you model (SGH_i317). If you have an AT&T phone only flash ROMs from the AT&T development section.
Here is a useful link to get you started:
http://forum.xda-developers.com/showthread.php?t=1987541

[Q] Unlock Samsung S3 SGH-i747M (possible???)

Hello everybody
I have a Samsung S3 SGH-i747M (from Canada) with 4.4.2 and version I747MVLUFNE6 which is locked. It asks for "SIM network unlock PIN".
Is there any way (I don't care for the warranty) to make it work with an other SIM? I am currently in Switzerland.
Thank you very much in advance!

No you'll have to either call the original carrier of the phone and request the code or pay for the unlock code.

pre4speed said:
No you'll have to either call the original carrier of the phone and request the code or pay for the unlock code.
Click to expand...
Click to collapse
Do you know a reliable site where I can ask for the code?

There's lots of them out there. Pretty sure eBay has some and you can judge by their feedback and ratings...can't think of any specific ones right now though.
Sent from my SAMSUNG-SGH-T999 using Tapatalk

pre4speed said:
No you'll have to either call the original carrier of the phone and request the code or pay for the unlock code.
Click to expand...
Click to collapse
The problem is that I don't know at which carrier belonged the phone and one page that I found,that doesn't require the carrier and I think read that is reliable (swiftunlock.com), does not include the i747m in the list.
Any ideas or any other sites?

Any that offer it for the I747M should work. Don't take my word for it though. Ask the vendor first.
Sent from my SAMSUNG-SGH-T999 using Tapatalk

All the sites that i found ask for the carrier which I don't know or to have the phone rooted and have a version lower than 4.1.1 which I don't .
Is there any way to find out at which carrier it belonged?
Or any other reliable solution?
Please... :crying:

Go yo swappa.com and check the imei. I think it shows the original carrier when it does the check.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

grgkots said:
Hello everybody
I have a Samsung S3 SGH-i747M (from Canada) with 4.4.2 and version I747MVLUFNE6 which is locked. It asks for "SIM network unlock PIN".
Is there any way (I don't care for the warranty) to make it work with an other SIM? I am currently in Switzerland.
Thank you very much in advance!
Click to expand...
Click to collapse
I just unlocked my SGH-I747M(canada Rogers/Fido) by down-grading to 4.11 and using the info from this thread "How to Unlock Your Samsung Galaxy S3 & Note 2 (No Rooting)"

found this in t-mobile thread. might be worth a check
err on the side of kindness

mrmike7 said:
I just unlocked my SGH-I747M(canada Rogers/Fido) by down-grading to 4.11 and using the info from this thread "How to Unlock Your Samsung Galaxy S3 & Note 2 (No Rooting)"
Click to expand...
Click to collapse
Free method will not work unless the bootloader is from 4.1.2 or lower.

audit13 said:
Free method will not work unless the bootloader is from 4.1.2 or lower.
Click to expand...
Click to collapse
That maybe true.....but I do know it doesn't work with ICS or JB 4.1.2 because [4] NW Lock NV Data INITIALLIZ does not show in menu.

mrmike7 said:
That maybe true.....but I do know it doesn't work with ICS or JB 4.1.2 because [4] NW Lock NV Data INITIALLIZ does not show in menu.
Click to expand...
Click to collapse
Once you are on the 4.3 ot 4.4.2 bootloader, you cannot downgrade the bootloader and the 4.1.1 modem will not work on the 4.3 or 4.4.2 bootloader.
You must be on at least the 4.1.1 dialler and modem.

mrmike7 said:
I just unlocked my SGH-I747M(canada Rogers/Fido) by down-grading to 4.11 and using the info from this thread "How to Unlock Your Samsung Galaxy S3 & Note 2 (No Rooting)"
Click to expand...
Click to collapse
Hey, I also have a I747 on Rogers on 4.4.2. Im looking to downgrade it to 4.1.1 like you did so I can sim unlock it. What process did you use to downgrade? Was it this: http://www.sammobile.com/firmwares/download/8565/I747MVLDLK4_I747MOYADLK4_RWC.zip/
THanks.
---------- Post added at 01:54 PM ---------- Previous post was at 01:53 PM ----------
audit13 said:
Once you are on the 4.3 ot 4.4.2 bootloader, you cannot downgrade the bootloader and the 4.1.1 modem will not work on the 4.3 or 4.4.2 bootloader.
You must be on at least the 4.1.1 dialler and modem.
Click to expand...
Click to collapse
damnit, just saw this. Is there any way to downgrade to unlock the SIM? What about if im on a different ROM?

There is no free way to sim unlock your phone once you have the 4.3 or 4.4.2 bootloader on your phone.

How to know on which bootloader ( bootloader 4.4.2 or 4.3) I am coz I was able to install a custom rom on my SGH-I747M The rom is dirty unicorn android 5.1.1 lolipop rom so Can I downgrade coz if I remember correctly I upgraded from stock 4.1.1 so can I downgrade to stock 4.1.1 by downloading and injecting it via odin is it possible or will it hard brick my phone and can you give me way to confirm what bootloader I have ???

Boot into download mode and look at the screen. If you see anything about knox, it likely the bootloader can't be downgraded to 4.1.1.

audit13 said:
There is no free way to sim unlock your phone once you have the 4.3 or 4.4.2 bootloader on your phone.
Click to expand...
Click to collapse
Can you guide me that how to know which bootloader do you have i.e. do I have a 4.3 or 4.4.2 bootloader how would I know that? and also I do have a custom dirtyunicorn rom with 5.1.1 so is it possible for me to flash the 4.1.1 stock SGH-I747M rom to it and then unlock it and then again add my current rom and use it???

Download and install the Samsung phone info app from the play store, run it, and look at the last three characters of the bootloader. If it is mk3 or higher, the bootloader can't be downgraded.

sim unlock for sgh-i747m 4.4.2 working need confirmation
audit13 said:
There is no free way to sim unlock your phone once you have the 4.3 or 4.4.2 bootloader on your phone.
Click to expand...
Click to collapse
Not quite sure where to put this but I have just successfully sim unlocked a samsung galaxy s3 sgh-i747m on 4.4.2 .This is only prelimary but upon unlocking and inserting a Public Mobile sim I was able to text on a Canadian Rogers S3. No further testing has been done. I first rooted the phone using Kingoroot and then downloaded the phoneinfo app from play store. I then used the app to get to service menu.At first service menu is blank but I used menu ,then key input Q, then back, then key input 0000,then back and then service menu appears. Now I am doing this from memory and no longer have the phone or another one at the moment to confirm this and will update this as soon as I can. But to the best of my knowledge I first went to UMTS(1) ,thenDEBUG(1), then Phone Control(?), then Network Lock.. Perso-SHA256 was on(1) I set it to off (0). I then backed out of the menu and shut down phone.I inserted PM SIM in phone and booted up .Phone didnt ask for unlock code and shortly I had texting service with Public Mobile. I dont have voice or data to check those but cant seewhy they wouldnt work. Anyway can someone confirm this working.My steps may not be exact but if it worked for me it should work for others.

[Q] AT&T to T-MOBILE FLash ROM

Hi everyone,
Is there a way to flash the AT&T or any other Stock ROM to a T-mobile phone ?.
I'v tried ODIN (version 3.7, 3.8, 3.9 and 3.10) .and I can´t manage to get it flashed.
Tried by TWRP too, and it says thet the zip isnt good.
Thanks in advance.

Not directly, no.

dc/dc said:
Not directly, no.
Click to expand...
Click to collapse
You mean inderictly is it posible? (dont know how is inderectly ).

Yes, but it requires a seasoned developer to make the modifications necessary. I'm not sure why you'd want to do this though as the AT&T version is far more bloated.

dc/dc said:
Yes, but it requires a seasoned developer to make the modifications necessary. I'm not sure why you'd want to do this though as the AT&T version is far more bloated.
Click to expand...
Click to collapse
Thanks for your reply.
I absolutely have no that kind of skill.
Anyway, the real reason I came up with that idea is because I cant unlock my T-mobile phone, and I live outside the US.
I've heard and read that sim unlocks by code are having problems.

Unfortunately, flashing firmware will not aid you in unlocking. Have you already tried buying a code for your device?

dc/dc said:
Unfortunately, flashing firmware will not aid you in unlocking. Have you already tried buying a code for your device?
Click to expand...
Click to collapse
He said flashing a rom not firmware. Someone over in the s6 forums flashed a metro pcs rom and was able to unlock the tmobile s6.

dnkeyhnter said:
He said flashing a rom not firmware. Someone over in the s6 forums flashed a metro pcs rom and was able to unlock the tmobile s6.
Click to expand...
Click to collapse
ROM = Firmware. They're interchangeable terms. Also MetroPCS is owned by T-Mobile, so I don't see your point. Flashing software does not unlock the SIM card slot.

dc/dc said:
ROM = Firmware. They're interchangeable terms. Also MetroPCS is owned by T-Mobile, so I don't see your point. Flashing software does not unlock the SIM card slot.
Click to expand...
Click to collapse
My appologies, coming from HTC m8...
http://venomroms.com/rom-vs-firmware/

themrmind said:
Hi everyone,
Is there a way to flash the AT&T or any other Stock ROM to a T-mobile phone ?.
I'v tried ODIN (version 3.7, 3.8, 3.9 and 3.10) .and I can´t manage to get it flashed.
Tried by TWRP too, and it says thet the zip isnt good.
Thanks in advance.
Click to expand...
Click to collapse
yes you can flash metro pcs firmware via odin and unlock by code

noobsaibot34 said:
yes you can flash metro pcs firmware via odin and unlock by code
Click to expand...
Click to collapse
There is no MetroPCS firmware for the S6 Edge as they do not sell it.

my bad this works only on s6...didn't realize you had an Edge

Im living outside of usa .
I have flashed my t mobile s6 using metropcs and unlocked my s6 using a code purchased online.
I reflashed my t mobile software and its still unlocked.
Can i update to stock 5.1.1 using odin and have the device still unlocked .
Once phone unlock is done using a code is it a permanent unlock ?

younussm said:
Im living outside of usa .
I have flashed my t mobile s6 using metropcs and unlocked my s6 using a code purchased online.
I reflashed my t mobile software and its still unlocked.
Can i update to stock 5.1.1 using odin and have the device still unlocked .
Once phone unlock is done using a code is it a permanent unlock ?
Click to expand...
Click to collapse
which code did you ask for to unlock the sim, metroPCs(sm-g920T1) or T-mobile(sm-g920T)??, I asked for metroPCs(sm-g920T1) code and unlocked my T-mobile phone
did you updated to 5.1.1?? which T-mobile(5.1.1) or metroPCs(5.1.1) ?? did sim kept unlocked??
thank you

datrico89 said:
which code did you ask for to unlock the sim, metroPCs(sm-g920T1) or T-mobile(sm-g920T)??, I asked for metroPCs(sm-g920T1) code and unlocked my T-mobile phone
did you updated to 5.1.1?? which T-mobile(5.1.1) or metroPCs(5.1.1) ?? did sim kept unlocked??
thank you
Click to expand...
Click to collapse
Hello
I have a samsung s6 t mobile version .
Flashed the metro pcs to unlock the phone and reflashed the t mobile firmware .its still unlocked and at 5.0.1 .
Im still looking for answers if i upgrade my s6 to 5.1.1 will my phone will be unlocked .if you find any , do let me know .
Sent from samsung s6

younussm said:
Hello
I have a samsung s6 t mobile version .
Flashed the metro pcs to unlock the phone and reflashed the t mobile firmware .its still unlocked and at 5.0.1 .
Im still looking for answers if i upgrade my s6 to 5.1.1 will my phone will be unlocked .if you find any , do let me know .
Sent from samsung s6
Click to expand...
Click to collapse
Your phone was unlocked by code. It is permanent. It is not rom dependant. Just like you flashed a different rom than the metro pcs when you originally unlocked your phone, you can upgrade too.

Flash unbranded rom
I have an unlocked G920T (came locked from amazon, but unlocked easily via device unlock app preloaded)
Is there an unbranded firmware I can flash, even if its from a different variant?

Im also interested to know if i can flash a at&t firmware on my tmobile s6. Not for unlock but because the person i gave it to wants to use the ohone on at&t and feel like its an at&t phone. Whatever right? But can i do that? Or would it have to be a custom rom? Orignal firmware would be nice.