If your TV is stuck on a logo or won't boot, use this "blind" flashing method: Unplug the TV from the wall outlet.

Press and on the TV panel (not the remote).

After the first boot (which may take longer than usual), it is highly recommended to perform a through the TV settings menu to clear old cache.

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