The TP.MT5507.PB801 Go to product viewer dialog for this item.

: Technical communities and sites like Kazmi Elecom often host these software archives.

: Insert the USB drive into the TV's USB port while it is powered off.

According to programming guides for similar PB801 series boards like the TP.HV310.PB801 , follow these steps:

: Power on the TV. The indicator light should begin flashing, signaling the update is in progress. This typically takes about 3 minutes .