My iPhone 4 isn't working, I resprung and it's stuck on the screen with the loading symbol after the Apple logo comes up...and it wasn't fixed by plugging it in. This happened after downloading a tweak from Cydia and respringing. Anyway, I have the tools to take out the screws in the bottom, I was wondering if I took out the battery and put it back in, if it may help, or if it's even safe to do so, I don't want to mess up my phone. Or should I just wait for the battery to die? I don't know if they will help me at the Apple store since I have a jailbroken iPhone (ofcourse they can't tell by looking at it now) Has anyone else had this problem before?