Surface Pro 4 Touch Screen does not work after Windows update

Hi, So I have about five surface pro 4s that I got from this company that was going out of business. I loaded Windows 10 Pro into all of them in hopes of selling them. I did all the updates, and for some reason, after the firmware update, my touchscreen stopped working altogether. I tried everything, re-installing the drivers and resetting the Surface nothing is working. Even when I enter the UEFI, the touch does not work at all. Before I did all the updates, the touchscreen worked perfectly fine in the UEFI. Do you know how I can fix this? What can I do?