Power off the TV and unplug it from the wall. Insert the USB drive into the USB 1 port. Initiate Update:
Once the TV boots to the setup screen, remove the USB drive and proceed with the initial configuration. ⚠️ Troubleshooting Download MS638 PC822 3840x2160 Aconatic 49DSU800 part4 rar
Move all extracted files (usually about 6 files) directly to the root of your flash drive. Note: Do not put them in a folder; the TV won't find them. Power off the TV and unplug it from the wall
Ensure you have the official firmware files downloaded. Download MS638 PC822 3840x2160 Aconatic 49DSU800 part4 rar
If the update doesn't trigger, try a different USB port or a different brand of flash drive. Community Insights
The process will take a few minutes to reach 100%. The TV may restart automatically.