Chosen Solution
I change display ( boken touch ) and used phone few days . After I take picture with camera the display turned white and swithed off phone ( battery was at 60% ) . Now it can not turn on . I tried with old display , but problem is not solved . Any suggestions ?
Could be in DFU mode. Is it recognised in iTunes?
I had the same issue because of my connections of the lcd was not right. So Check that the cables fit properly.
Did you unplugg the battery every time you replaced the screen? If not, I would check the lightning/image fuse
