Develop Bugs

Rooted LG P935 need clarification about Network/Carrier Locking

So ive gone ahead rooted my P935 many times now quite simple to do. The question is its a Telus phone i'm with rogers, when i flash the v10f kdz i get origninal GB korean rom fully unlocked phone shows using rogers network. When then doing nitro hd unbrick guide and if i only DD the system.img file to install the att version p930 then do the battery pull factory reset my phone still is network unlocked. What i'm tryin to find out is which .img files baseband firmware etc would control this network lock, since when i tried to flash H!ONO v20c P930 cmw flashable ics leak my phone became network locked again. Ijust cant seem to straighten it all out , information overload .

That's very strange, flashing ROMs should not affect network lock. I'm using Bell P930 on Fido, I've flashed AT&T leak and Bell official ICS and neither have re-locked the phone. As long as the IMEI remains unchanged you should be able to use the original unlock code you received to unlock the phone again.

jekostas said:
That's very strange, flashing ROMs should not affect network lock. I'm using Bell P930 on Fido, I've flashed AT&T leak and Bell official ICS and neither have re-locked the phone. As long as the IMEI remains unchanged you should be able to use the original unlock code you received to unlock the phone again.
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Click to collapse
Interesting indeed would it be the v10f .kdz korean somehow. And heres the thing I have recieved no unlock code to unlock. And now am back to running the CM9.1 unlocked working on Rogers Network .

Aha! I figured it out. CM has your Rogers APN preconfigured. The official roms would not lol. I don't know why the SU640 rom was letting you connect. It really shouldn't because your firmware and baseband should be incorrect if you flash it. Anyway, APN has nothing to do with your phone being locked or not

w0095157, are you certain your phone was never carrier unlocked by someone? Did you purchase it brand new in box from a store?

drumist said:
w0095157, are you certain your phone was never carrier unlocked by someone? Did you purchase it brand new in box from a store?
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brand new in box i swear, telus store,. must be a fluke. but it works id like to find more information on different radios modems, which may change service for me, but i was comparing this to what iphone 4 service was saying side b y side.

Yeah, that makes more sense. Unlock codes are $2 off of eBay, it's worth it just to make sure you don't have any hassles switching between ROMs.

Does LTE work on Rogers when using the Bell unlocked version (P930)?
I know you have to get an LTE Sim card and an LTE enabled plan, but before i buy on eBay and update my plan, i was wondering if the LTE band works on Rogers even if it is a Bell phone.
Yes, i have LTE in my area.
Cheers!

j1paque said:
Does LTE work on Rogers when using the Bell unlocked version (P930)?
I know you have to get an LTE Sim card and an LTE enabled plan, but before i buy on eBay and update my plan, i was wondering if the LTE band works on Rogers even if it is a Bell phone.
Yes, i have LTE in my area.
Cheers!
Click to expand...
Click to collapse
I don't live in Canada, but from what I'm able to find online, Rogers and Bell are using compatible LTE frequencies so it should work just fine.

It works!!!
w0095157 said:
So ive gone ahead rooted my P935 many times now quite simple to do....
Click to expand...
Click to collapse
:laugh:
So after trying million and 1 things I made it work! Baseband and firmware go together and I thought they contain the SIM/network lock so i tried changing them, but apparently all the versions i tried were locked too.... so since the Korean version is with unlocked SIM, why not change directly from it to Cyanogen build ??? Because the wifi is not working!!! and since i did not manage to fine how to install in while offline (CM or Clockworkmod) i flashed from the Korean version just the system.img and voila! I have unlocked SIM with working WIFI ... so putting CM after this was a breeze!
so:
1. flash to Korean V10F_00.kdz
2. root the phone
3.adb shell
su
dd if=/sdcard/system.img of=/dev/block/mmcblk0p27
should have unlocked SIM + everything else working on the ATT version which you can now install Clockworkmod and go for Cyanogen mod of your choice. i did cm-10-20121105-NIGHTLY-p930.zip - works great!

I have a p930 with at&t permanent locked network, I discovered too that the baseband of the korean version is unlocked, I made a thread about this but nobody commented or cared i think lol, you can install any rom you want but remove the baseband of the rom before install.

Dreven said:
:laugh:
So after trying million and 1 things I made it work! Baseband and firmware go together and I thought they contain the SIM/network lock so i tried changing them, but apparently all the versions i tried were locked too.... so since the Korean version is with unlocked SIM, why not change directly from it to Cyanogen build ??? Because the wifi is not working!!! and since i did not manage to fine how to install in while offline (CM or Clockworkmod) i flashed from the Korean version just the system.img and voila! I have unlocked SIM with working WIFI ... so putting CM after this was a breeze!
so:
1. flash to Korean V10F_00.kdz
2. root the phone
3.adb shell
su
dd if=/sdcard/system.img of=/dev/block/mmcblk0p27
should have unlocked SIM + everything else working on the ATT version which you can now install Clockworkmod and go for Cyanogen mod of your choice. i did cm-10-20121105-NIGHTLY-p930.zip - works great!
Click to expand...
Click to collapse
Ok I have a similar problem with an at&t Lp 930, did the unbrick guide to sim unlock with the korean baseband. While in the koream ROM sim was succesfully unlocked. But after following the guide, flashing to AT&T Gingerbread and installing ClockWork Mod, I flashed it to HO!NO! AT&T ICS CWM Flashable ROM once in ICS, I lost Sim Unlock and was back to: Network Locked on Phone.
So what your saying is to basically only flash the system.img after the korean ROM is on the phone and ignore the other images, then after flash to desired ROM with CWM?
And if so, if I flashed to HO!NO! At&t flash, would I still have Locked Network?
Thank You

vagrant00 said:
Ok I have a similar problem with an at&t Lp 930, did the unbrick guide to sim unlock with the korean baseband. While in the koream ROM sim was succesfully unlocked. But after following the guide, flashing to AT&T Gingerbread and installing ClockWork Mod, I flashed it to HO!NO! AT&T ICS CWM Flashable ROM once in ICS, I lost Sim Unlock and was back to: Network Locked on Phone.
So what your saying is to basically only flash the system.img after the korean ROM is on the phone and ignore the other images, then after flash to desired ROM with CWM?
And if so, if I flashed to HO!NO! At&t flash, would I still have Locked Network?
Thank You
Click to expand...
Click to collapse
replace everything but the baseband, that is how I did

[Q] cant get back to stock on ls980

sorry for my english
i just buy a lg g2 sprint and the guy who sell me the cell told me that it was unlocked and it was cause im using it with my telcel sim card in mexico but i just find out that it has a custom rom call rayglobe flex 3.5 android 4.2.2 , and i just found out that sprint cannot be unlocked by code and i found a way to get it simunlock , i want to update to 4.4.2 for that i need to return to stock
i follow instructions exactly i download tot and dll for ls980 but my phone says that is a d802 but the back of my phone says ls980 and is a sprint version but my phone says d802 so when i try to use lgflashtool everything go ok but after waiting for conection says wrong model number or check dll
and i cant return it to stock is there a way to change model number so lgflashtool can be use ?
and kind of new to custom roms and root and stuff
i have twrp recovery
or is there like a custom rom that i could flash without loosing my simunlock?
thanxs i hope you could help me guys

[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.

Uncusseful Network unlock with cm12.1 and MJB Bootloader... Is there a way?

So here's my problem. I finally got my code to unlock my network on my Canadian rogers phone but I've realized that I need stock rom to be able to unlock and I am now on Cyanogenmod 12.1 android 5.1.1 with the I747MUMUEND3 baseband and MJB bootloader (I believe). I remember flashing a new baseband/modem to be able to get the CM 12.1 nightlies.
But now I'm stuck in France with a SIM card that doesn't work and I don't think I can downgrade from what I'm seeing in the forums. Once your beyong 4.3 there seem no downgrading/stock possibilities...
Am I stuck with a Galaxy S3 wifi tablet?!

You can flash the latest 4.4.2 stock ROM from sammobile.com, perform a factory wipe, boot phone with non-Rogers sim, enter the sim unlock code.

audit13 said:
You can flash the latest 4.4.2 stock ROM from sammobile.com, perform a factory wipe, boot phone with non-Rogers sim, enter the sim unlock code.
Click to expand...
Click to collapse
Sorry to ask you but I can't seem to find it. I've been searching and I found firmware
http://www.sammobile.com/firmwares/download/9102/I747UCDLK3_I747ATTDLK3_XXX/ but
I feel like that might not be it... And I'm scared to brick my phone!

The Rogers s3 is the Sgh-i747m.

And this gets it down to just the i747M releases by Rogers.
http://www.sammobile.com/firmwares/database/SGH-I747M/RWC/

dawgdoc said:
And this gets it down to just the i747M releases by Rogers.
http://www.sammobile.com/firmwares/database/SGH-I747M/RWC/
Click to expand...
Click to collapse
Unfortunately I'm now stuck on boot...

Nevermind I had to factory wipe wich I did and now I have successfully unlocked my phone. Thanks a bunch guys. Much appreciated!

So, I was given a i747 A T & T model for my daughter. I was able to get TWRP flashed and made a back up of the stock ROM. I then proceeded to flash CM12.1. Now, my question is this; I got the unlock code from the original owner and was trying to use it but it kept coming back as an incorrect code. I found this thread and realized I need the stock ROM. So if I restore the stock ROM back up, will that be enough to let the unlock code work? Unfortunately, I've already used 4 of the 5 tries, and don't want to waste the last one. Thanks for any information.

You should be fine to enter the code if you are able to restore the TWRP backup of the stock ROM.

audit13 said:
You should be fine to enter the code if you are able to restore the TWRP backup of the stock ROM.
Click to expand...
Click to collapse
Thanks. That's what I was thinking, but I wanted to run it by you folks here. I'd never dealt with Sim unlocking a phone before. My personal phone was purchased Sim unlocked and my next phone will be a Nexus device so the whole Sim unlocking is new territory.
Sent from my Moto G XT1034 using Tapatalk

Good luck. We're all here to help each other out. Let us know how it goes.

audit13 said:
Good luck. We're all here to help each other out. Let us know how it goes.
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Click to collapse
It worked great! I restored the original stock ROM backup I'd made in TWRP and then performed the unlock and it worked. I'm glad too, since it was the 5th try out of 5 tries. I'm now restoring the backup of the CM12.1 that I'd made for her last night and she's got an active phone. Thanks a lot for the confirmation.

No problem. Congratulations?

Please Need Some help with my g2 ls980

My lg g2 ls980 is not connecting to 3g or 4g it only shows gsm i have already rooted my phone flashed it and installed a rom in it but still no good so if any one knows about it please tell me:crying:

which ROM you have installed and Did you sim unlocked your phone?

Librastar said:
which ROM you have installed and Did you sim unlocked your phone?
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Click to collapse
cloudyG2 2.2 and i did not sim unlock my phone