The seemingly dark screen iPhone problem with a black screen.
O The recently encountered problem on iPhone 6 with the most the new version of iOS 9.
The total closed screen, without any trace of light or give any sign that they would respond to an order on the buttons. iPhone It seemed totally closed and could not open by pressing the Power / Sleep button.
However, the surprise was like se could receive calls, the iPhone sounds, but it could not be answered, because nothing more than black appears on the screen.
Causes and iPhone resolution Black / dark display
In case I presented it above, with the iPhone whose screen does not open at all, we suspect that was a problem because of Full storage space.
Before you put iPhone in the box and prepare it for service, it is good to try a restart “cold”. A forced reboot of iPhone. Hard reset.
When I restart a iPhone 6 / 6s – iPhone Hard Reset
Even if nothing appears on the display, We put iPhone uploaded (let's make sure it has a battery), we let it charge for 5 minute, then We press the Home and Sleep buttons simultaneously (Locking / Unlock button on the side – right). We hold the two buttons for 15-20 seconds.
Normally, after this time the white or black screen should appear with the Apple logo (apple) and the phone start normally.
After this restart the installed applications, the documents, the pictures and other data stored on the iPhone, will not be affected.
If this method does not help you, try to put iPhone inDFU mode /Recovery Mode. You need a Windows PC / Mac OS X with iTunes installed, data cable and little attention. This tutorial It's helpful.
