Originally Posted by ThoseWhoDo
Any help to restore this to stock would be greatly appreciated!
It's best not to do anything to make it worse.
Return it to where you bought it for replacement. It's hardware problem
The only thing you can try now is factory reset and see whether it boots
M8 - 1.54.707.7 - TWRP 22.214.171.124
M7 - 5.12.707.3 - TWRP 126.96.36.199