Vogue keeps turning on and off by itself after a flash...

[starletgt92]

I have a Sprint HTC Vogue, since I was looking to switch carriers over to Metro PCS I unlocked the phone using the Coke App I found here. After that the phone keeps turning on and off. It will stay on for a few seconds and then reboots and keeps doing the same til the battery is gone. However when I have the phone hooked up to the computer via USB Cable the phone stays on. Can it be the battery got mest up because of the flash?

I have also installed several different ROMS to see if that made any dif. but it did not help. Still keeps turning off.

Any help will be appreciated.