Touch not working after screen swap

make sure the ribbon cable is fulling connected to all the boards and make sure all scraws are where are supposed to be

Microsoft Surface Duo Teardown - iFixit

Black mark pots in laptop screen

Well try restarting your PC. If you're still having problems, check for updates: Select Start , then select Settings . In Settings, select Update & security , then Windows Update , and then select the Check for updates button.