I downgraded the bios to an earlier version and reinstalled build 1709 and still the touchscreen is not working. I even put in a different hard drive reloaded windows 10 using both 17 builds.
I took the laptop apart and made sure everything was connected securely. I looked under Human Interface devices, Usb controllers, Mouse and other pointing devices and also set it to show hidden devices and still nothing. I looked under I ran the dell diagnostic test and support assist app and both don't have recognize the touchscreen either.
I looked in the device manager and the touchscreen isn't even showing up. I have a Dell Inspiron 7348 where they said the touchscreen stopped working after an update.
