Chosen Solution

Phone came into the shop yesterday and this could be bad Unit seems to have no power and will not turn on

  1. Tested Battery over half charged
  2. Plug in charge cable Phone gets slightly warm after about 10mins charge (normal and charging)
  3. Changed Screen no change
  4. Plugged into itunes itunes sees phone
  5. Put on another screen (both new) no change
  6. Checked main board no damage to connectors Starting to get worried for this phone, anyone have any ideas ?? Cheers

have you tried power cycling the phone? pop the battery and press the power button then plug back in. if that doesn’t work you could have blown the backlight chip by changing screen without disconnecting the battery first. rip the backlight off a working screen and shine a torch behind the lcd to confirm

If iTunes recognizes your device and multiple screens don’t work, then check the LCD with a flash light. If you see a dim image, then it sounds to me like you have a blown backlight circuit on the logic board. It’s usually the filter but it can also be the rest of the circuit. It’s either the screen or the backlight circuit on the logic board. If you have access to a known-good screen, try that first. Otherwise, you will need to find a reputable shop that does micro-soldering.