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need help for sim card lock?

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waynelin0908
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Question need help for sim card lock?

i Convert my AT&THTC One to google play edition today, then i just to unlock my sim card to tmobile, but when i put unlock code ,it said fail to unlock , is someone help me ?
 
spurdo
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Quote:
Originally Posted by waynelin0908 View Post
i Convert my AT&THTC One to google play edition today, then i just to unlock my sim card to tmobile, but when i put unlock code ,it said fail to unlock , is someone help me ?
Had another problem. Converted my att phone to play one edition, after about 20hrs it lost service and shows "no service". Ran ATT RUU but no result
Hardware problem, isn`t it?
 
In Flames
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Quote:
Originally Posted by waynelin0908 View Post
i Convert my AT&THTC One to google play edition today, then i just to unlock my sim card to tmobile, but when i put unlock code ,it said fail to unlock , is someone help me ?
You'll need to flash a stock AT&T rom for the unlock code to work.
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