not charging... no 3.3v... power manager?
Hi guys... I', struggling trying to solve an issue with this iPad Air...this is the scenario: while off, when connectin lighting cable it switches on but it does not charge the battery... what\s weird is that there is no "not chargin" message near battery icon... simply nothing.
Analyzin with multimeter there are no shorts at all in the board, but 3.3 volts rail is completely missing..... all the other voltages are present. I tested continuity between dock pins soldered to the board and checkpoint and everything is ok... I already replaced the charging IC (U6000) but no result.... each and every smd belonging to PP3V3_ACC line is good and functional... should I replace the power manager (U8100) or anyone of you can suggest me other solutions? thanks everyone in advance....
Is this a good question?