know how many minutes I had I dialed the USSD code it displayed 'Connection problem or invalid MMI code' I signed in to my provider homepage to see if something was wrong and it said that my account was active? I'm on carbon ROM and my phone is rooted. I even took out my sim card and put in a different phone that phone sim card on my phone and it worked, but my sim card didn't work on the other phone when I dialed the USSD code it said 'Unable to process Request'? I have T-Mobile prepaid service. What should I do?
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- Thread starter zz77
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