Iphone-6-no-power-solution-100-working -

Often, the phone is powered on but "frozen" with a black screen. A force restart can jumpstart the system.

Press and hold the Home button and the Power (Sleep/Wake) button simultaneously. iphone-6-no-power-solution-100-working

Plug it in for at least 30–60 minutes before attempting another force restart. Often, the phone is powered on but "frozen"