AT&T Galaxy S3 Model I747 - Upgrading, Modifying and Unlocking

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

Related

[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

Samsung note 2 GT-N7105 help please

hi guys in need of a little help.
My friend has asked me to try and unlock her samsung note 2 GT-N7105 from ee/orange uk to tesco uk i have tried the *#197328640# but when i press the last hash# key nothing happens besides a message that says "not registered on network".
ill try and give you all the details i can
model number: GT-N7105
Android version: 4.4.2
baseband ver N7105BVUFNE1
kernal version 3.0.31-1935132
build number KOT49H.N7105XXUFNF2
I can confirm this phone is not stolen also im not sure if the phone came with 4.4.2 stock or if it was updated at a later date
i know the method i tried above works on this model phone on the old jellybean 4.1.1 firmware but i think this phone has 4.4.2 kitkat which is why its not working.
So my question is, can i unlock this phone as it stands? if not could i possible downgrade it from 4.4.2 to 4.1.1 then use above method to unlock?
Thanks for your help guys really appreciate it.

Sim unlock galaxy s3

Anyway ? Possible now to unlock galaxy s3 t999 running 5.0.2 or 5.1 for that matter, I don't even know if buying an unlock code would even work at this point ?
First, you need to be on TouchWiz to unlock. Buying an unlock code has been hit or miss for some devices to take, even with official ones from T-Mobile

Hi I have a few questions about using a phone made for another neterwork (att) on tmo

Well in short I have an At&t Model GS4 the i337 its currently unlocked running on stock Nj4 and of course want to root it. First of all i suspect i need to use t mobile roms now that i am on that network.
Here is a list of questions and links are also appreciated as answers anything that helps!
First and foremost how should i root this (my last device was a G3) so if things are different please tell me also, I their an app or a thread you can point me to.
Secondly how do i update it to a v5.1 or the latest so updating them rom later is not a problem if i must use odin to do this (i want to use the latest to use odin the least)
Lastly anyone who can give directions on how to root and get to the latest version of android i wold greatly appreciate the time anyone spend to respond to this this post i TYIA
So any links that will work work with NJ4 I would be so happy I have only experience with the G3 I feel i know what to do with it but the Gs4 is new to me and i appreciate any help i receive/
Thank yo for reading this and TYIA for responding thank you for your help i hope its as simple as someone posting some links so i can do this easy i again thanks for leading me through the fog and TIA
@BeatnikBandit :
Basically, you're in the wrong forum. You'll need to get support fir the ATT version i337 over in the forum for that model. I used to have one, actually. I sold it on Swappa and got a T-Mo M919 S4 so that I could take advantage of all the AOSP ROMs for the M919. At least as of a year ago, there was no way to unlock the boot loader on the i337 and the only ROMs available for it were basically just skins on the TouchWiz kernel. ROMs, such as they were, used something called SafeStrap. Not sure if things have changed for that device in the year since I gave it up.
You can only use ROMs made for your model. So, even if the locked boot loader weren't an issue with the i337, its hardware is different from the Verizon or T-Mo variants. Using a ROM for a different model will give problems. On the T-Mo M919, there's a bit of an exception in that we're hardware comparable to the international variant, so we can often use ROMs for that one (9505 I think). Oh, and the M919 never got an official lollipop upgrade from T-mo before they gave up on it, so there are some issues with using LolliPop ROMs on the M919.
I'm sorry I can't help you with how to root, but presumably you will find that answer over in the i337 forum.
As for using the i337 on T-Mo, that should be easy enough. Just go in and enter the APN information for T-Mo (probably is in the T-Mo forum somewhere) in place of the ATT APN info and you should be good to go, presuming your phone is SIM-unlocked. Instructions on SIM-unlocking it should be in the ATT i337 forum, if you're not already unlocked. For example, when I got my M919, all I had to do to get it to work on ATT was enter the APN info from ATT, and BOOM I was on the network. I bought a pre-SIM-unlocked phone to avoid having to unlock it myself.
I hope this is at least a little helpful even if it's not all the answers you were hoping for.
Marc

Samsung galaxy s3 simunlock GT-999L

Dear All.
Please i have an issue with my phone. The phone ask me to put a network code.
SGH-T999L
Android version : 4.3
IMEI: Mod edit: Do not provide your IMEI in public
So can you help me to have the code or to give some procedures to resole this mistake.
If the phone is running a 4.3 or newer bootloader, you will have to buy an unlock code.
I have never seen a free method that allows an s3 phone running a 4.3 or 4.4 bootloader to be unlocked for free.

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