Firmware archive for the HP Deskjet 5820 inkjet printer, 6.52 MB in RAR format. The name does not state a version, a board revision or which memory chip the file is meant for. Such a package can bring back a printer whose formatter board firmware is corrupt. Open the archive to see whether it holds a raw chip dump or an update file. If writing directly to the chip, identify the memory device first and back up its existing contents with a programmer before overwriting.
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 →