Question about Sony Ericsson K800i Cellular Phone

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Phone wont start with charged battery.

My K800i was working perfectly fine. I was putting in a new sim card and then i took it out because it wasn't activated. i returned the original sim to the phone and it wouldn't turn on. I have cleaned the battery terminals and checked my battery on a friends phone. There must be power there because every time i press the "on/off" button, there is a red light that flashes where the infrared patch; next to the camera button on the side of the phone.
Please help.
Thanks

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The phone software is corrupted you need to reinstall the phone software if your phone is within warranty please give to service center and or get it done on the local phone service center .......................

Posted on Jun 03, 2008

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How to reprogram my sony ericsson k800i


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Obtain the unlock code for your K800i if the phone is locked. You can get the code from an unlocking service, or from the carrier that originally sold the phone.

Turn off the K800i and turn the phone over.

Remove the battery cover by sliding it toward the bottom of the phone. Lift the battery from the bottom and set the battery cover and battery aside.

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Turn the phone on and wait for it to boot up.

Press left on the navigation pad and press "*" twice, then press the left arrow again. The phone will display "Personalize with MNC2."

Type the unlock code and wait for the phone to reboot.

Turn the phone off and insert the new SIM card.

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