1. mclovin85's Avatar
    i recently got an iphone 3g from a nieghbor, who purchased it from the store. When i received it, i worked fine. Then i attached it to my itunes and now it says i don't have a sim card when i have one in it. I tried to restore the firmware to try to hack it, and was waiting for it to finish downloading onto my computer ( Not downloading it on my iphone), and when it was done my iphone was turned off, i can't turn it back on i think that the power button might be broken. Now its just a black screen, and i can't turn it back on. any suggestions?
    07-12-2010 07:24 PM
  2. Ivoryplum's Avatar
    Perhaps the battery is dead?
    Try plugging it in for a good amount of time.

    Also, try holding down the power button and the home button at the same time.
    07-12-2010 07:28 PM
  3. lungho's Avatar
    This happened to me a while back. Search the forum or google for DFU mode. This will get you headed in the right direction.
    07-12-2010 08:51 PM
  4. Ivoryplum's Avatar
    DFU mode:

    While plugged in to your computer and iTunes open, hold down the power button for 3-seconds...then while keeping the power button held down, hold the home button down as well for 10-seconds.
    Then let go of the power button ONLY while keeping the home button down for another 20-30 seconds.
    07-12-2010 10:26 PM