I am not in a hurry for money.
here is latest reply . Raised refund to 90$ or device of same worth. Thinking of appropriate reply. Trying to get advice of more people to chip in.
Bought MI-4C on April 2016 for 209.99 $ from GearBest and all was good until touchscreen started to feel ghosts at January 2017, in other words issue known as ghost screen.
Ghost screen makes renders touchscreen and phone unusable due to random touches, almost like AI but more like unusable...
Also same on my MI-4C , noticed first when rotation stopped working, downloaded sensor box and it showed that all senors are not working. Didn't wipe or anything yet, backing up now.