Weird occurrence just now on iPhone 4 4.1. Browsing this forum on wifi and listening to music with 22% battery left and the screen suddenly went to the black with white apple for 2 seconds then back to first home screen. Not a full restart, but more like an abbreviated version of it. Guessing it's just a weird quirk but this has never happened to me in 2 years of use and I was planning on jailbreaking for the first time today. Now, I'm worried that this could happen during the jailbreak and make things go horribly wrong. Should I avoid jailbreaking before I figure out what caused it, or is there no harm if this happens during the jailbreak? Has this happened to anyone else? Also now the battery usage screen is saying to fully charge to show usage, despite not plugging it in. The multitasking states do not seem to have been saved.