Press and on the TV panel (not the remote).
To restore or update your television using the S512 PB83 mainboard backup, follow this guide to ensure a safe and successful flash. 1. Prerequisites & Equipment
While holding the button, plug the TV back into the power outlet.
If your TV is stuck on a logo or won't boot, use this "blind" flashing method: Unplug the TV from the wall outlet.
Plug your prepared USB drive into the bottom USB port of the TV. Initiate Flash:
Use a USB 2.0 drive, ideally 4GB or 8GB in size. Format: The USB must be formatted to FAT32 .
Once the progress reaches 100%, the TV will either restart or go into standby mode. Do not remove the USB or power until it finishes. 4. Verification & Reset