: Ensure the file is named correctly (usually MERGE.bin or similar) and the USB is formatted to FAT32, not NTFS.
: Go to Settings > About or System Information to verify your current firmware. The newest versions for this board often start with V2.09 or higher. kt20-y-multi-v2.0 update
After the restart, return to the menu to confirm the new version number is displayed. You may need to re-select your language and reconnect to Wi-Fi after the reset. Troubleshooting Common Issues : Ensure the file is named correctly (usually MERGE
: Refining the digital adjustment algorithms for a sharper image. After the restart, return to the menu to
: Try a different USB port or a different USB flash drive (older USB 2.0 drives often work better for firmware updates).
: The projector will show a progress bar. Do not turn off the power during this time. Once finished, the projector will automatically power off or restart. 3. Verification