| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | | TV not powered on during connection attempt. Or wrong driver. | Power TV after clicking connect. Check Device Manager for CH341/FTDI errors. | | "Device ID mismatch" | Chip is locked (some Samsung/LG boards) or V506 is needed. | Use a v4.x utility with Force skip device ID . Or ground pin 5 of SPI flash. | | "Write Failed at 0x0000A3F2" | Bad VGA cable (too long or cheap). Electrical noise. | Use a high-quality, shielded VGA cable under 1 meter. Lower the I2C speed in Settings. | | "Timeout on auto baud" | Wrong COM port selected (for serial method). | In Config, manually set Baud rate to 115200. Ensure no other software (Arduino IDE) uses the COM port. | | "Erase fail – sector protect" | Write-protect jumper on mainboard is enabled. | Find the WP# (write protect) pin on the SPI flash and pull it high (3.3V) temporarily. |
Read, write, and erase data directly from the onboard SPI Flash or EEPROM MBoot Burning: mstar isp utility v508 download top
