S4 Unlock method forever?? - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

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???
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[Q] Help Simple Question. Root Fido Unlocked S4 SGH-I337M

Hello guys I own a Galaxy S4 SGH-I337M, Fido Unlocked (https://www.fido.ca/)
So my Question is, may I root and firmware flash this phone without losing the unlocked. I mean if I root and flash this phone will it be locked?
Will work Motochopper? http://forum.xda-developers.com/showthread.php?t=2252248
Thanks for your help
No it well not lock it if you root. Once it's unlocked it will remain that way
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
jd1639 said:
No it well not lock it if you root. Once it's unlocked it will remain that way
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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Thank you very much!
Another question.
So no problem if use any custom firmware after rooting? Fido comes with some apps, if these apps are removed after flashing new firmware will be any problem?

recovery

I know this has probably been asked before but Is the bootloader locked down on the lg g2 or can I unlock it and run a custom recovery. I recently bought a Galaxy s4 and cannot unlock this phone.
Well you don't really need an unlocked bootloader to flash custom recovery and custom Roms. Root with ioroot (makes the efs backup as well), use freegee for custom recovery and flash away!
Sent from my LG-D802 using XDA Premium 4 mobile app

[Q] upgrade quest

hi,
I have an unlocked SGH-I337 with Android 4.2.2 I337UCUAMDL root and revocery,
if I upgrade to version 4.4.2, I lose the unlock??
thanks
Yes you will, if you want to be able to flash roms I recommend that you do not take the update
Sent from my Nexus 5
why not just run a 4.4.2 custom rom like
http://forum.xda-developers.com/showthread.php?t=2313469
it runs great for me--there are others also
nandroid first a usual in case a restore is needed--:good:
i prefer twrp 2.5.0.2 myself
caccolino said:
hi,
I have an unlocked SGH-I337 with Android 4.2.2 I337UCUAMDL root and revocery,
if I upgrade to version 4.4.2, I lose the unlock??
thanks
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You will not lose sim unlock however you will lose boot loader unlock. Just wanted to clarify that
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
cnewsgrp said:
You will not lose sim unlock however you will lose boot loader unlock. Just wanted to clarify that
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
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It's good to know that I won't lose my SIM unlock, I had been worried that it would cause problems for the person I sold my s4 to, it's nice to know I didn't screw them over (T-Mobile user).

Loki doki

Just root my phone recently. I'm wondering what is loki? Since some roms require loki. I'm using s4 i337m or a Canadian model. Thanks!
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fableevoke said:
Just root my phone recently. I'm wondering what is loki? Since some roms require loki. I'm using s4 i337m or a Canadian model. Thanks!
Sent from my SGH-I337M using xda app-developers app
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It is a S4's exploit that unlocks bootloader or bypasses bootloader so that you can install TWRP or other recoveries to flash custom roms. If your device has higher version than MF3, you can't use loki doki. Simply, if you rooted your phone with motochopper, that means you are in MDL or lower version in which you can use loki doki. i believe that you are on MF3 or higher, so visit this thread before doing something wrong.
http://forum.xda-developers.com/showthread.php?t=2616221
You don't need it at all with Canadian models. There are several threads within the forums that cover this information.
I rooted my phone using cf auto root. It has already custom recovery. It means i don't need loki anymore. Thanks!
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[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

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