1. miag's Avatar
    Okay, I have a T-MOBILE phone that came with a sim card...
    I want to use my NEXTEL Blackberry and have it work with my TMOBILE sim card. The NEXTEL has a place for my sim card but the phone is not reading it. I have alreayd wiped the blackberry clean of its original contents.
    PLEASE HELP!
    08-20-11 10:28 PM
  2. dictoresno's Avatar
    thats because the Nextel phone runs on the iDEN 800mhz network. your t-mobile SIM will only work in a GSM phone. the only reason that the nextel phone has a SIM is because iDEN is based off of TDMA technology (the parent of both iDEN and GSM) and requires it for network authentication. however, they are incompatible.
    08-20-11 11:35 PM
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