I think i'll go the Apple store cause of my ipad air 2 crackling noise issue. Before going, i'm going to restore the device as new, in case they'll replace it. the question is... are the data REALLY erased with this procedure or could them be recovered in some ways? there are softwares that promise to recover deleted data from ipad/iphones on the internet (never used, maybe they don't work), could it be done on an ipad just restored as new? for pcs, low level format (not simple format) grants real deletion of data... what about ios devices? can one be sure that his privacy is granted when returning them? thank you, and sorry if this argument has already been discussed.