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Hi I have an iPhone 6…. I changed the display, the problem is that the display becomes black randomly. I have changed two displays with the same error …. Now I find error that the face camera and earpiece don’t work .. I test a display from my own Iphone 6 and then the camera and the ear peace work so it not i logic bord error. I ordered new camera .. to day but I don’t know if the randomly black display error is sovled Is it someone who had the same error there the camera is corse the display becomes black randomly .. ???? Update (09/23/2016) Hi the screen randomly goes black . I have tried to clean connectors and tested 2 screens but still it don’t work it sometimes start to blink after 10-20 min then it goes black. If i push power button it shout off i can hear the click, then it wake up the screen home or power button please help………….

1.software issue make the update or downgrade ios 2.just make hard reset it might solve the error hold the power with home button tell logo comes bck 3.replace the parts 4.if still problem chk the connectors