Firmware dump for an XVISION XDVB-123 receiver, sized for a 4 MB flash chip and stored in a 2.62 MB RAR archive. The name gives no software version or board revision, so compare the label on the unit and on the flash chip before use. A dump like this is written to the SPI memory with a programmer such as a CH341A to revive a set-top box that hangs on boot or shows no picture after corrupted firmware. Read and save the original chip contents first, and check the image size equals the 4 MB chip capacity.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →