iPhone 6 only charges while on.
If the battery ever drops to 0% and turns off it cant be turned on or charged. I have to take the battery out boost it then put it in and turn it on, where it will charge just fine. Confirmed issue on multiple batteries.
Could this be Tigris or Tristar IC?
I do motherboard repair all the time so microsoldering is an option I just want 2nd and 3rd opinions before I go replacing IC's.