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I have an HTC Desire Z which I have bought 3 months ago and I usually use it for phone calls. I don't have many apps in it. Sometimes when I call from my phone it switches off and then I have to remove and reinsert the battery to restart it.
What could be going wrong here? I have Android version 2.2 on my phone.

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Sounds like a kernel panic. – Matthew Read♦ May 1 '11 at 17:33
Wats the solution? – user4125 May 1 '11 at 17:34
2  
Hacker solution: Root it and flash a new kernel. Mainstream consumer solution: Restore to factory settings and see if that helps, or go to your wireless carrier store and have them flash your phone. – kchau May 2 '11 at 11:48
@kchau Feel free to post that as an answer. – Matthew Read♦ May 2 '11 at 12:54

2 Answers

up vote 1 down vote

Hacker solution: Root it and flash a new kernel.

Mainstream consumer solution: Restore to factory settings and see if that helps, or go to your wireless carrier store and have them flash your phone.

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up vote 1 down vote

Install Battery Monitor Widget, and the companion app Process Monitor Widget.

These will display and log the battery temperature and CPU usage respectively. Process Monitor will also let you see a list of the most active processes.

This may help you learn what's happening on the phone before you go as far as restoring factory settings or flashing.

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