So i Found the solution for my Xperia Z3 Compact Battery Problem, staying Battery level at exact 50 Percent no charging. Thing happened to me after LCD Repair. Please watch out the Battery cable and Battery connector on the logic board. I t seems to be that you can connect the battery at the wrong position on the connector. after releasing them again and cleaning both parts i watched very closely that cable connector of battery and socket on logic board fit together. Now i heard the familiar click ! and voila, with a new start battery was at 9 % and charging. Its a bit tricky to connect properly because you hardly see both parts. Hope this information helps you.
---Solution for my iPad Mini Home Button Problem ---- This is for those who replace their screens with glasses including preinstalled home Button and IC. I noticed by compairing the defective and the new part that the housing of the home Button of the replacement part is a bit thicker than the original one. That was the trick for me. Place just 2 cusions beside the home button hole and the thicker housing cant activate the button anymore. This trick worked out for me. Glass from the outside is still OK. I think its just a matter of 1mm. Please check the photo. Hope that could help u.
I would say its a defective home flex cable if it would not work outside of the case. It even works if its almost in the ipad mini housing, but as soon as the glass sits in, homebutton goes crazy. Tried the electrical tape hint didnt work out for me.