Chosen Solution

Hi First of all excuse my bad English, I replaced my screen and i followed the instructions step by step and the screen worked for like ten second and turned black, everything else work, the touch on the screen is working , the touch ID is working, the front camera is working( how did I know? I connect my phone to my mac and with quick player you can see your phone through your mac), I restart my phone and didn’t work, I reconnect the screen cables and power cycle my phone. still doesn’t work, so can you help me?

saeed if you didnt disconnect the battery when replacing the screen you could have blown the backlight filter on the board

Screen isnt turning on? try the order of operations below that my technicinans all follow! By following the steps below, you agree not to hold myself, or the website responsible for any damage to self, device, or surrounding objects, that improperly handling your phone may cause. These steps will also assume you have the required tools to do repairs, where as else, it would make no sense to ask for instructions.

  1. Hard Reset: Hold the home, and lock button down together for 15-20 seconds, or until you see the apple logo. if you get the apple logo, great! if not, continue
  2. Data restore: Plug the device into the computer. (preferrably one it has been plugged into before) make sure the device is recognized by USB. check what the device reads as on iTunes. If it gives you the option to restore the device up front, then do so immediately. should it read fine as a phone, then continue
  3. Loose connectors: Disconnect the screen, clean the connectors with Isopropyl 99% rubbing alcohal, and a new toothbrush. Then reconnect the screen. Should this fix the issue, great! if not, continue
  4. Excite The Battery: Hit the + and - of the device with an external power supply for approximately 30 Seconds to 1 Minute. (This power supply MUST be of the proper voltage and amperage of which the battery will accept, otherwise injury may occur. these Specs can be found written on the battery itself) This repair requires specialized power supplies, and if done without it, may cause property damage or physical harm The next steps require parts, and will not be free of charge
  5. Check the board for physical damage: Scan the board (Preferrably under a 10X+ Microscope) for cracked, chiped, blown, or missing components. replace any problmatic components.
  6. Battery: Replace the battery, if this fixes your issue, Great! if not, continue
  7. Screen Replacement: Replace the display assembly. If this fixes your issue, great! if not, continue
  8. Logic board replacement: You will need to replace the logic board in the device. this will fix your failure.