No sim / Invalid sim error

Discussion in 'iPhone Tips, Help and Troubleshooting' started by reebzor, Nov 25, 2009.

  1. reebzor macrumors 6502a


    Jul 18, 2008
    Philadelphia, PA
    So every once in a while, my iphone 3g will show up with a No sim card installed message or it will say invalid sim. If I reboot the phone it works fine for a little while then does it again. My sim is totally legit, I bought the phone through AT&T, it's not refurbished or anything. My only problem is that my 1yr warranty is up so I can't take it back. Is my iPhone starting to die or is there any way this can be fixed?
  2. -aggie- macrumors P6


    Jun 19, 2009
    Where bunnies are welcome.
    Go to AT&T and ask for a replacement sim due to issues you are having. They should give it to you for free.

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