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My android (Sony Xperia 10a) spontaneously reboots on a 1m to 15m cycle. I had a Nokia before and I think it rebooted more often than expected as well. My Google contacts, a SIM and AT&T are the only things I brought forward from one to the other so I suspect all three.

Does anyone know if a bad SIM can cause rebooting?

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this question is too vague to be useful – Lie Ryan Jul 8 '11 at 5:48

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Perhaps it could but not in this case. I'm going to go with faulty hardware and here's why. I have tried the following:

Action.... Rationale

  • full reset ... installed too many apps and corrupted OS?
  • full reset and reformat memory card ... corrupt file system on mem card?
  • full reset and don't use a memory card ... defective mem card? new sim card ... bad sim?
  • full reset + new google account ... bad data in google account?
  • full reset + original google account but do not activate any location awareness ... suspect GPS issue

In each case I can get the phone to fail in 5-45 minutes and usually within 20m as long as I'm tranferring some data via 3g (youtube, downloads etc).

So, since I have swapped out everything except the physical phone hardware the problem must lay in the device itself. Glad there's a manufacturer's warranty

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