オリジナル投稿者： pollytintop ,
It sounds like your battery is dying or not charging which is why it's black screen most of the time. It takes most power to complete the boot to full screen so you get the fading apple as it consumes all it's power. I'd start at the obvious and check your dock for dust/lint/damage, try a charge on wall for 1 hour, check your cable. If all that still fails to boot the iphone then buy a new battery.