Nintendo Switch Non-Responsive Touchscreen Repair

Fixed the issue where the touchscreen would not work after replacing the game cartridge slot.
No touchscreen functionality after replacing the game cartridge slot.
If your console is hackable, launch Hekate and try the touchscreen calibration menu. Once completed, your touchscreen should work normally on the stock firmware.
If your console is patched, try using a different cartridge reader version (CV, DN, or DM). Alternatively, you can try calibrating the cartridge board using a hacked Switch before reinstalling it into the original console.