I'm looking to find a reference number for 1610A3 chip as shown at this link http://www.ebay.com/itm/5pcs-Charging-IC-U2-Chip-1610A3-Not-Charging-Fix-for-iPhone-6s-6-Plus-6-36-Pin-/231862206310?hash=item35fc107f66:g:~xUAAOSwiYFXEMkH and sold by a china vendor. This chip is part of the iphone and I'm looking for a replacement part #, not sure if custom chip or not. I checked NXP website and no luck. Also looking for datasheet for it. Any thoughts?