Constant high-frequency whine after update Cause: ANC filter coefficients corrupted or sample rate mismatch Fix: Downgrade to previous version (if allowed) or manually reset to anechoic defaults.
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
Verify that the firmware files match your hardware version (e.g., XY-AUTO vs. GongAn). Stuck on Boot Logo: Constant high-frequency whine after update Cause: ANC filter
Alpha Coustic units are primarily Android-based "Universal" head units. Because these devices use various chipsets (like T3L, TS10, or TS18), there is no single "one size fits all" update file. Installing the wrong firmware can disable your touch screen or cause the device to fail to boot. GongAn)
This process typically takes 5 to 15 minutes. Do not touch the screen or turn off the ignition. Reboot: The unit will reboot itself once finished. Step 4: Post-Update Calibration
keeps disconnecting, it might be time for a firmware update. Updating your head unit ensures compatibility with the latest smartphone features and fixes underlying system bugs. ⚠️ Critical Safety Check Before You Start Do not turn off your car
: Try a different USB port or ensure the drive is formatted to FAT32, not NTFS or exFAT. Touch Screen Issues