Network Unlock your ATT SGS3 for free (howto)
- Thread starter stewartsoda
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Bell Canada GS3 Jelly Bean Unlocked
This method worked on my GS3 SGH-I747M Bell Mobility Canada Running Stock Jelly bean that was released yesterday. I tried before on LH1 ice cream sandwich but the last menu option was not there.
This method worked on my GS3 SGH-I747M Bell Mobility Canada Running Stock Jelly bean that was released yesterday. I tried before on LH1 ice cream sandwich but the last menu option was not there.
I'm kind of curious about this as well. Is this a "soft" unlock? Can it be "reset" with the phone? Is it Samsung's software that allows it, or is it the modem, so it may be used by custom roms?
Running the rooted stock new AT&T Jellybean and it seems to have worked for me. But does anyone know the code to check carrier lock status for sure? I've tried the code that is probably for ICS or maybe the I9300 and it didn't work. I tried *#7465625# .
Before I did the procedure I got an error with an old foreign sim. Said something about a lock. Afterwards, it gave no error with that sim except that the account wasn't registered. The APNs were now for that carrier and not AT&T. Tried a second foreign sim from a different provider that is active and in the upper left corner it showed Tmobile and the provider, which is right as that provider uses Tmobile as the roaming partner in my area. The APN was showing for that provider, so both times it changed the APN and no longer showed the AT&T APN.
Before I did the procedure I got an error with an old foreign sim. Said something about a lock. Afterwards, it gave no error with that sim except that the account wasn't registered. The APNs were now for that carrier and not AT&T. Tried a second foreign sim from a different provider that is active and in the upper left corner it showed Tmobile and the provider, which is right as that provider uses Tmobile as the roaming partner in my area. The APN was showing for that provider, so both times it changed the APN and no longer showed the AT&T APN.
+1
That code *#7465625# used to work on Sammy roms on my good ol' GS1 (i9000), but it doesn't seem to work on the GS3.
There's gotta be a code to see the network lock status...
Bought mine in July and called AT&T 2 weeks later and told them I was going abroad and needed the unlock key. Gave them my IEMI and got the code. Stuck in a T-Mobile SIM card and unlocked.
Always try to call first, you maybe surprised.
Sent from my Nexus 7
Always try to call first, you maybe surprised.
Sent from my Nexus 7
Not if your your on the the Canadian side I tried Believe me...
And this procedure worked for me to once it was done there is no confirmation...you just need another sim from another Provider which I had
and it worked no Problem at all
so +1
FWIW, after following the steps if you do it again when you get to this point
" [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds,"
You will get a screen saying no change. This would mean that it worked the first time and your phone is already unlocked. I've done 5 S3's and checked with different SIM cards and it worked every time, 3 of those I went back and tried the steps a second time and all three gave me the no change message. Sort if a confirmation that it worked if you don't have another SIM to try.
3 Bell S3s, 2 Telus S3s and tried on my S3 but got the no change right away as it was already unlocked when I bought it.
" [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds,"
You will get a screen saying no change. This would mean that it worked the first time and your phone is already unlocked. I've done 5 S3's and checked with different SIM cards and it worked every time, 3 of those I went back and tried the steps a second time and all three gave me the no change message. Sort if a confirmation that it worked if you don't have another SIM to try.
3 Bell S3s, 2 Telus S3s and tried on my S3 but got the no change right away as it was already unlocked when I bought it.
Last edited:
Didn't work on my AT&T S3. But that's probably because I'm running CM10 and not stock
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
simple: just call ATT, tell em ur goin to Europe, and how "I understand ATT usually unlocks for customers who go overseas." IDK if they only really do it for longtime customers, but its easier and cheaper than the other ways
You also have to have an account in good standing and another SIM card to do that.
It did work for my fg's T999 <TMo Galaxy S3) flawlessly. Thank you very much friend
Sent from my SAMSUNG-SGH-I747 using xda premium
Sent from my SAMSUNG-SGH-I747 using xda premium
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12I just saw this on Reddit and tried it on my ATT SGS3. I used an old StarHub SIM I had laying around and it didn't ask for the unlock code, so I'm pretty sure it worked.
The instructions are for the GSM Note 2, but the author says it works for the GSM SGS3, too.
http://xdaforums.com/showpost.php?p=34661189&postcount=1
I think you have to be on a stock ROM to get it to work. I was running UCALH9, bone stock. Don't forget to thank the OP on the other thread!4FWIW, after following the steps if you do it again when you get to this point
" [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds,"
You will get a screen saying no change. This would mean that it worked the first time and your phone is already unlocked. I've done 5 S3's and checked with different SIM cards and it worked every time, 3 of those I went back and tried the steps a second time and all three gave me the no change message. Sort if a confirmation that it worked if you don't have another SIM to try.
3 Bell S3s, 2 Telus S3s and tried on my S3 but got the no change right away as it was already unlocked when I bought it.3FYI:
Now you can get an unlock code from AT&T for free even if you're not a customer. As long as your phone meets the unlock eligibility requirements, they'll send you a code to unlock.
Proof? I am not an AT&T customer, and have an unused i747 that I wanted to unlock. I filled out their request form on Friday, and just received my code 30 minutes ago! And voila, my i747 is now unlocked.
Info: http://www.androidpolice.com/2015/0...u-sim-unlock-your-phone-heres-the-fine-print/
Here's the AT&T page:
https://www.att.com/deviceunlock/#/
Enjoy!2This method for unlocking your phone works perfectly after Jelly Bean update on Rogers sgs3.
Sent from my SGH-I747M1
I don't know. Since the SIM I had laying around was not a mini-SIM I had to chop it up, too. O_O
In theory you don't ever see the unlock prompt unless you insert a non-network SIM anyway, so I don't think there's any way to check without one.
