https://www.eeti.com/drivers_eGalaxTouch.html → Select "Windows" or "Linux" → Download "eGalaxTouch (USB I2C RS232) Driver v5.x.x"
Only update firmware if the release notes address a specific issue you are experiencing. Incorrect firmware can permanently damage the touch controller. Tp.mt5522.pc821 Software Download
Official firmware for these generic boards is rarely hosted on a central manufacturer website. Instead, technicians rely on specialized communities: https://www