Chosen Solution
HI there, I have an iphone 6s that doesn’t power on but is recognized on iTunes. i have checked the display cables and even outright replaced the screen but it still isn’t working, nor is the vibration working. i already did a dfu restore but it didn’t work. does anyone have any advice on what I should do? Thank you in advance!
Take your phone to a darker place or wait until night comes and shine a light to your screen. If you can see a faint image your backlight is missing. That’s a board repair issue but a skillful technician who does microsoldering might be able to fix it with at a relatively affordable cost, many work on a no fix no fee basis, thus you have nothing to loose. If you have no image at all it might be a more troublesome repair. In both cases however it doesn’t seem you could fix it yourself, it’s not a DIY repair.
iPhone have to find the solution by see the error code during firmware upgrade via iTunes.First replace battery and restore because low battery cause that firmware upgrade failure. See the history why that the fault is appear like water damage or forcely dropped that you don`t mention here.
