Using a tool like sha256sum AlphaCoustic_FW_v3.1.acu – compare against manufacturer’s published hash.
If the touch calibration is off after an update, you may need to plug in a USB mouse to navigate to the "Touch Calibration" settings.
Many Android head unit enthusiasts share stable firmware builds for specific chipsets.
Using a tool like sha256sum AlphaCoustic_FW_v3.1.acu – compare against manufacturer’s published hash.
If the touch calibration is off after an update, you may need to plug in a USB mouse to navigate to the "Touch Calibration" settings. Alpha Coustic Update Firmware
Many Android head unit enthusiasts share stable firmware builds for specific chipsets. Using a tool like sha256sum AlphaCoustic_FW_v3
Dirk Schade
