My Thunderbolt keeps rebooting on its own. I never had the problem until the software update. The only time it doesnt reboot is when I have the phone plugged in. I could have the phone charging all day but as soon as I take the powercord out and start using the phone it reboots. When it reboots it fully drains the battery. I have reset the phone, removed and reinstalled the battery and sim card to see if this would help. Nothing works. Any suggestions?
