iPad A1893 touch not working

I recieved iPad 6th Gen A1893 with no touch function, immediately i tried soft reset and that didn't help, I ordered a new touchscreen and tested it but still no fix, resoldered FPC connectors even tho they were holding on just fine, all diode values were normal reffering to repair wiki diode mode values for this model, I bought the same model for parts and the touch was working on it, replaced both Broadcom IC's near the connectors that were responsible for touch function but issue still remains, checked the caps around the IC's none were short to ground, looked through thermal camera nothing seems to be heating up abnormally, out of ideas, what should I try next?