Unzip the downloaded .rar file using WinRAR or 7-Zip.
Move the .bin file to the root directory of the USB (don't put it in a folder). Power Off: Unplug the TV from the power outlet. Insert USB: Plug the drive into the TV’s USB port. Update: Plug the TV back in. Download 3663LUA A81 1366x768 Firmware USB rar
This can be fixed in the Service Menu (usually Menu + 1147 or Input + 2580 ) under "Panel Settings" -> "Mirror." To ensure you get the exact version for your specific TV: What is the brand and model name of your TV? Unzip the downloaded
Format a USB flash drive (8GB or less) to FAT32 . Insert USB: Plug the drive into the TV’s USB port
Once the blinking stops or the TV restarts, remove the USB. ⚠️ Common Troubleshooting
🚨 Installing incorrect firmware can permanently damage (brick) your TV. Ensure your screen panel voltage and resolution (1366x768) match the file specifications. 💾 Firmware Specifications Chassis/Board: 3663LUA A81 (T.S3663LUA.A81) Resolution: 1366 x 768 Interface: USB Update Format: .rar (Requires extraction to .bin) Features: DVB-T2, Digital TV Support 🛠️ How to Install via USB
Try a different USB drive or rename the file to allupgrade_3663LUA_A81.bin .