Hi to everyone, unffortunately I'm experiencing the same issue. My Iphone gets frozen when rebooting, on the silver apple logo. It happened to me twice and I was able to finally reboot it, but yesterday I was downloading and application from Cydia and it happened again, now I can't make it reboot... Itunes firstly recognises it but then it disappears and it's like it wasn't there, the same thing happens continously in a loop. Any ideas???!!!