If the product is older or "End of Life" (EOL), you may find the firmware link shared within community forums. However, use these with caution and always scan the files for malware before use. How to Install the Firmware
After the update finishes, power-cycle the unit and verify that the firmware version has been updated in the system status menu. Troubleshooting Common Issues lddh350aa75 firmware link
button on the TV, and plug it in. The standby light should start blinking, indicating the update is in progress. or a different TV brand? If the product is older or "End of