[Q] Flashing AT&T S4 to stock rom? - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I want to know if I flash a stock ROM such as lollipop to my unlocked AT&T phone, would it relock to default network? I unlocked it by purchasing an unlock code from a website.
thanks

No, once you're unlocked it will stay unlocked even if you flash the stock firmware with Odin.
Sent from my Nexus 9 using XDA Free mobile app

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S4 Unlock method forever??

Hello, I currently have a AT&T S4 i337 unlocked by the *#0011# method to work with Claro. I want to flash a custom rom in it but im not sure if the method is gonna stay or if I have to do it again or so.
Does that unoock method unlocks forever the device even if I flash a cutom rom, recovery or kernel???
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

ATT NB1 4.4.2 to TMobile stock?

I have used google and searched all over XDA. Can someone tell me how to odin my Att S4 with NB1 to tmobile stock firmware? I am just lost at which way to do it.
I am currently running Stock NB1 on my s4. Bootloader is locked.
You can't. Most you can do is downgrade and try to flash a T-Mobile ROM with Safestrap.
Sent from my GT-I9505 using xda app-developers app
Curious why yu'd want to do this?
All u really need to do is Sim unlock it through ATT, pop in yur tmobile sim... and maybe change your APN
Posted from my I337 NB1 Dark Venom 3 SS version --- 20G Free Cloud --- https://copy.com?r=vtiraF
Prob because T-Mob is unlocked and has an unlocked bootloader.

[Q] Samsung Galaxy S4 AT&T Bootloader unlock

Is there and way that I can unlock the bootloader of my Samsung Galaxy S4 AT&T SGH-I337 jflteatt rooted? I have been trying to find something that could possible work for a long time now and so far nothing is working. Also I am running NC1. I just want to install TWRP and unlock the bootloader.
You can't unlock the bootloader yet, as an alternative you can use safestrap. You can install a GPE rom, it's pretty stable.
Sent from my GT-I9505G using XDA Free mobile app

[Q] Will updating my modem get rid of Wind mobile frequencies?

I have an i337M S4 from Rogers and it's unlocked. It works on Wind too(Going to guess the seller flashed that AWS mod).
Can I go ahead and just flash a modem TAR and a bootloader TAR from Odin(WITHOUT losing Wind 1700AWS support)? I want to update my modem and BL because they are old now. I backed up my EFS using TWRP but pretty sure that is not the modem.
Help please
Flashing with odin will not re-lock the sim. Once it's unlocked it'll remain unlocked
Sent from my Nexus 5 using XDA Free mobile app
jd1639 said:
Flashing with odin will not re-lock the sim. Once it's unlocked it'll remain unlocked
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
I think you didn't get what I was saying. This thing has an AWS mod flashed into it.

Going back to stock question.

So if I bought my phone rooted and with a custom rom and unlocked for any carrier,if I went back to stock would it become relocked?
No, once it's unlocked it'll remain unlocked
Sent from my Nexus 9 using XDA Free mobile app

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