Hi, When my iPhone 5 was charging last night it randomly put itself on the apple logo booting screen. I tried resetting it (Sleep + Home button). It restarted but was still stuck on the booting screen. I then tried to put it in DFU mode, connected to my mac (3 sec. Sleep, 10 sec. Sleep/Home, 10 sec. home-button). I tried different variations but only this one (partly) worked. The screen turned black but iTunes still didn't recognize the device. I haven't jailbroken it and it was on iOS 8.4.