[Q] help to downgrade galaxy s3 - T-Mobile, Samsung Galaxy SIII

i have galaxy s3 t-mobile version 4.1.2 i want to unlocked it to use AT&T but i can'T do it. I need to downgrade the version 4.1.1 but i don't know to do it. Could u hel me please? please show me step by step to downgrade to version 4.1.1. thanks

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[Q] Wind Mobile Note 2 4.1.2>4.1.1 help

Hi everyone,
I tried to unlock my Wind Mobile Note 2 with the service mode (perso sha 256 off) method but it seems to only work for devices with 4.1.1. I've already updated to 4.1.2 so the unlock doesn't seem to work for me.
I'd like to rollback my os to 4.1.1 but I can't seem to find the firmware for it. I've been following these instructions: Droid Views How to Downgrade Firmware on Samsung Galaxy Devices (sorry can't post links yet)
Does anybody know where I can find the 4.1.1 firmware for: SGH-T889V (model) GLW (region) T889VVLBMA3 (version)
Alternatively, if anybody can recommend how I might unlock the phone any help would be greatly appreciated.
Thanks!

[Q] How to downgrade firmware Galaxy note 2 SC-02E

Hello guys !
I want to unlock my Docomo Note 2, and i found a thread about a hidden menu.
The problem Ican't make it appear when I dial the *#197328640#, and someone said you should downgrade your firmware.
I have the 4.1.1 firmware but it seems it's updated so I need to go back to the previous version of 4.1.1!
can you give me this firmware and show me how to downgrade it ?
I'll be very thankfull!

AT&T Galaxy S3 Model I747

I just got the phone, I do not have at&t service and need to unlock this one, It's running ver 4.1.2
Can someone tell me if they have found a way to unlock this thing, I have tried some, but final option
"Inialize" does not appear on this phone,
please help
thanks

[Q] Help unlocking sgh i747 4.1.2!

Hello everyone. I would like to ask some help regarding my at&t galaxy s3. I've tried to look for a 4.1.1 firmware everywhere and i can't find one. I need to unlock my phone and it's currently on 4.1.2.
So if anyone knows where can i find a 4.1.1 firmware, kindly help me. thanks!
Maybe one of these pre-rooted ROMs will work: http://forum.xda-developers.com/showthread.php?t=1739426

[Q] Unlock SGH-I317M running Android 4.4.2

Hey there,
I need some assistance unlocking my phone, it's locked to Sasktel and they want $50 to unlock it.
It's a Galaxy Note 2 (SGH-I317M), running Android 4.4.2, baseband version I317MVLUDNF1.
I've seen various threads explaining bits and pieces how to unlock this phone, but not for these specific version numbers. If anyone could post step by step instructions that would be great.
Thanks!
The instructions are listed here, keep in mind that you will have to downgrade your ROM to 4.1.1.
Good luck

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