About 2 weeks ago I got a CRC error on my iPhone. I was jailbroken at the time I got the error but I restored. I still have the error. The phone cuts off by itself every 2-3 min when its on the charger and off. It also doesn't display the right battery percentage (it doesn't go up or down). The only way to tell the percentage is when it resets itself. When it cuts off it displays a green, red or blue screen and it looked as if you were unplugging an old TV. I replaced the battery about a month ago and switched back to the original to see if it fixed the problem but it didn't. I also bought a new battery but it didn't solve the problem either. Maybe I just got a bad battery or is my iPhone done for?