I have an issue with repairing iPad mini 4 screen's I have repaired many iPads but the mini 4 is acting odd. I replaced the screens and swap over the home button and solder the little cable thing thats on the left side of the home button. My issue is the power button won't work any more. But oddly it will power on and power off the unit but not lock or wake up the unit. I've repaired two of these unit and both have this same exact issue.