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AT&T Galaxy S III unlocked

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vreyes
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Default AT&T Galaxy S III unlocked

Hello,

Sorry if this was asked before but i couldnt find it in the search as its coming up with numerous returns on something else.

Anyways, I bought an AT&T s3 rooted and i was able to put it back to stock with Android 4.0.4. After i put it back to stock i got it unlocked to use on T-Mobile.

My questions are,

how do i update the software to the latest version. do i update it with AT&T software or do i use the T-Mobile software version?
If I update it again will it get locked again?
Rooting is not really an option as it is for my daughters use

thank you in advance for any replies,

V
 
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Originally Posted by vreyes View Post
Hello,

Sorry if this was asked before but i couldnt find it in the search as its coming up with numerous returns on something else.

Anyways, I bought an AT&T s3 rooted and i was able to put it back to stock with Android 4.0.4. After i put it back to stock i got it unlocked to use on T-Mobile.

My questions are,

how do i update the software to the latest version. do i update it with AT&T software or do i use the T-Mobile software version?
If I update it again will it get locked again?
Rooting is not really an option as it is for my daughters use

thank you in advance for any replies,

V
If you update i believe it will no longer be unlocked to use on T-Mobile. However you do need to use the AT&T ROMs for it to work on your phone.
 
vreyes
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so is it best to root the phone and update it that way.
 
audit13
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Originally Posted by vreyes View Post
so is it best to root the phone and update it that way.
You can try updating the phone using the phone's OTA updater. It may not work if you have root.

I don't recommend updating all the way to 4.3 as it will load a 4.3 bootloader which cannot be downgraded and Knox.
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