[Q] HELP! Talk,text and data not working with new TmoUs account.

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Hello I am experiencing a BIG problem . I Successfully flashed a Nand rom to my phone last year it worked great but after some shortcomings I could no longer afford my pay as you go plan. My phone service had been cut off for about 7 months until yesterday, since it was off so long I had to get a new Tmobile(us) account/SIM card. My phone booted up in android as normal with full 3G service bars but when I went to make a call it said "This Carrier will not allow phone calls to this number" shocked I went back to Tmobile to make sure my account was active and it was. My text also do not work and I cannot sign into my gmail account either. Ive searched the web and it does not seem that anyone has a solution to this problem PLEASE help me !!

Did you try reflashing it?

There are a few things that could be going on here:
1. tmobile has you on the wrong data plan which has happened to me in the past. The had me on a blackberry plan which messed up a lot but you should still be able to make calls.
2. You have a balance left over on that phone and tmobile has locked that phone
3. you need a new sim card. tmobile will gladly change out your sim for a new one for free
4: something is going on with Android on your phone.

I would talk to Tmobile again and ask for a new sim or go in the store and see if the sim you have will work in one of their phones. If it does then you know its
something with your phone. I would kind of start over just to clear up any problems. Start with making a back up of anything you dont want lost, including your
sd card. Then repartition your phone/sd to what the ROM you want to use needs. Reinstall MAGLDR and cwm and finally the ROM you want to use. See if that
helps at all. If i had to take a guess it could be something as simple as the simcard is messed up but without having them try it in another phone or you trying
it in another phone you wont know for sure. I know it seems like a lot but reinstalling this stuff should clear up if its your phone or your sim thats messing up.

Before you blame Android, flash your phone with stock WM 6.5 rom. If you still can't make calls or get any data, take the phone to a T-Mobile store and have them figure it out.