If you have a working PB813 board, do not wait until it fails. Create your mirror today:
Some firmware variants expect 5-key buttons (Power, Vol+, Vol-, Menu, Source); others expect 7-key. Using the wrong one disables physical buttons.
The firmware manages the switching between input sources via the internal multiplexer. Tp.vst59s.pb813 Firmware Mirror
Once you have a verified .bin file, follow this exact procedure.
You cannot open a .bin file in a text editor. Instead, use a hex editor (HxD is free): If you have a working PB813 board, do
If the file is exactly 1,024 bytes or has repeating patterns, it is a corrupted dump.
Because the PB813 uses different flash IC sizes (2MB, 4MB, or 8MB), a mirror is not just the file—it is the exact sector alignment. Many failed flashes occur because a user writes a 4MB file to an 8MB chip, leaving garbage in the remaining sectors, causing the bootloader to hang. If the file is exactly 1,024 bytes or
The Mirror Requirement: You must use a programmer (CH341A, RT809H) to read the entire chip, from 0x000000 to 0x7FFFFF, and save it as a raw binary mirror.
