for the process to complete (it may take 5–10 minutes). Do not turn off the power.

Plug your prepared USB drive into the USB 1 port on the TV side panel.

Sometimes the TV's bootloader will not automatically detect the firmware file. If your TV doesn't start the update when you plug in the USB drive, you can force it by renaming the file.

Alter the value (typically from 0 to 1, or vice versa) until the colors display normally.

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The filename will typically look like: TP.SK518D.PB802_update_2025_02.zip or PB802_V2.4_full_ota.zip .

The process is straightforward once you understand the hardware ecosystem. To summarize the key takeaways:

Downgrading without wiping data often causes app force-closes. Always wipe data when rolling back.

A: No, the entire .bin file is a single raw image. Even if it's nearly 650 MB, it will still fit on a 4GB or 8GB USB drive. There is no split‑file requirement.