1. LalaWoopsy's Avatar
    owkai so iv had my bb for a fw months
    orginally it was a gift froma good friend.
    its actually on T-Mobile, but sinse im on a 3G contract my friend went out to unlock it for me
    apparently it wasnt possible to unlock t 3g
    buttt when i got it and i insertd my 3G sim into itt. it was working!! WOOOOHOOO
    BUT NOOOOWW.. sadly its stoped working. i thought maybe my network prvider stoped it? but why would they. i pay them extra for my BBM.
    This alll happen after i took my 3g sim out and put my TMobile sim in for a night. then i the morning when i tryed inserting my 3g sim that message came upp
    WHAT DO I DO???
    PLEASE GET BACK TO ME ASAP ANYONE.
    I love me bb its like my baby i need it to work
    08-26-10 01:29 PM
  2. rcnathan's Avatar
    The 8520 does not support Tmobile's 3G. I would imagine you are going to need another SIM card that works on Tmobiles EDGE Network.
    08-26-10 01:36 PM
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