The standby light should begin blinking rapidly, indicating the update is in progress. Do not power off until the light stabilizes or the TV reboots. Common Adjustments Mirror Mode:

Export-WindowsDriver -Online -Destination D:\DriverBackup\TR67PB816

Using incorrect or "generic" drivers can lead to communication failures or, in industrial settings, safety hazards. Always cross-reference the serial number and hardware revision of your device before downloading.

It looks like you're searching for , but that specific alphanumeric string doesn't correspond to a known, mainstream software package or driver in current databases.