white iPhone 3gs reboots itself :confused:

[Ice9812]

I have a white iPhone 3gs new bootrom on 4.2.1 and it was working fine. it wasnt jailbroken it was just a stock 4.2.1.

all of a sudden one day it rebooted itself, then after it started back up after about 3-5 minutes it would just reboot itself again
it didnt matter if i was using it or if i let it sit there charging.

Then i woke up in the morning and it was on the connect to itunes screen as if it need to be activated, but itunes gave me an error so i restored it to 4.2.1 but now it gives an error at the end of the restore, error 29 and it boots to the recovery logo.

i tried using tiny umbrella to kick it out of recovery but it just keeps rebooting back to the recovery logo

does anyone have any ideas about this
Thank you

[iYeow]

It looks like you have a hardware problem. Get a replacement if it is still under warranty.

[Ice9812]

no its not under warranty, so i guess ill sell it for parts

Thanks for the reply