So, I've been having this problem for about a week now. My phone turns off while I'm writing a text, calling someone, or just using an app. It won't turn back on unless I have it charging. Also I know that my battery is fully charged, but sometimes it tells me that my phone is 0%.
It's super annoying and I was really liking the ThunderBolt too. Any help?
I had the same issue, and it was fixed when I replaced the battery. Rechargeable batteries need to be replaced eventually. I've had ZERO trouble since... You can get them relatively cheap - search your favorite online place to buy electronics, but make sure you get OEM (which means the same people who make the device)...