1. z33dev33l's Avatar
    My new Lumia won't read my Sim. For about a second it reads that the ATT Sim is there, then it says the card is invalid. It doesn't seem to want to allow me to use my Sim. I tried a t-mobile Sim as well to no avail, same issue. It seems like a software issue that a hard reset won't fix. Any help?
    04-14-2012 12:59 AM
  2. MattLFC's Avatar
    Could be a faulty handset I'd guess, return it to the store, they should probably give you a new one.

    :)
    04-14-2012 03:03 AM
  3. jimski's Avatar
    Are you using a properly provisioned LTE MicroSIM, supplied by AT&T?

    Sent from my Lumia 900 using Board Express
    04-14-2012 06:49 AM
  4. freestaterocker's Avatar
    Are you using a properly provisioned LTE MicroSIM, supplied by AT&T?

    Sent from my Lumia 900 using Board Express
    It's an 800. No LTE.
    04-14-2012 07:01 AM
  5. z33dev33l's Avatar
    what freestaterocker said. Plus, I've tried three Sims. I hate doing the replacement thing for a free developer device.
    04-14-2012 10:34 AM
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