If the touch screen is inverted or unresponsive, use a USB mouse to navigate to Settings > Factory Settings (Code is usually 8888 , 1617 , or 1234 ) > Touch Calibration.
Here is everything you need to know about finding, preparing, and installing an Alpha Coustic firmware update. Understanding Alpha Coustic Firmware Alpha Coustic Update Firmware
Note your current MCU and Build versions before starting. Step 1: Locating the Correct Firmware If the touch screen is inverted or unresponsive,