Flashing firmware carries risks. Ensure the board number matches your hardware exactly. Using firmware for a different board revision can result in a "hard brick" where the TV will no longer power on at all. If you'd like to proceed with the recovery:
This dump file is typically intended for use with a (like the RT809F, RT809H, or CH341A) rather than a simple USB stick update. Download VST59 P83 HYUNDAI H3960AD2UE Backup Dump rar
The device restarts repeatedly before reaching the main menu. Flashing firmware carries risks