nexian g522 keypad or mmc and sim problem

nexian G900, G910, G922, G923, G803, G522 so is often damage to the power/MT6318A ic, keypad hank his example was not functioning not detect MMC + / + can not read memori’card insert dual sim … how one “of his illness analyze these >>>>>
(1) heat the ic / ic rocking
(2) re-ic reprint
(3) replace ic MT6318A
This is a solution that air could probably help you a daily “brain-tweaking its mobile / phone technician …. good luck: D