Chosen Solution
If anyone has an iPad 6 (with cellular!, there was no cellular select option in the ifixit dropdown) and is able to measure a tiny resistor near the 610A3B tristar chip, as pictured, that would be great. It came off the board during a tristar replacement and no schematics are available. iPad air 2 schematics suggest it may also be 10K but I’m not 100% sure. This would help immensely!
@kylegp great job on getting it fixed. As usual I am late to the party. This is actually more for my own learning experience with this iPad. I checked a few things and got really confused about the reference designators you guys were talking about. Looks to me like your missing component is actually R8399 which would make it a 0 ohm resistor. In that case and if I am looking at this right, you could have just used a jumper on it.
hi kylegbp, I think this is a line named 12a3b_usb_brick_ID_R connected to R4001 6.34k 1/32W 01005 and goes to c4001 0.01UF 6.3V X5R 01005 on line 12a3b_to_PMU_usb_brick_ID (PMU position r13) for checking me, find out c4001 parameters and confirm that here - next left capacitor on your picture
