Raw 8 MB firmware image labelled DWR-M920 revision A1, which matches a D-Link 4G router model name, with a note suggesting a password and an additional code string whose meaning is not stated. Such a dump is usually written to the router SPI flash with a programmer to revive a bricked unit. Confirm the hardware revision on the device label and the flash chip size before writing. Save the original chip contents first, as calibration and MAC data stored in the dump are unit-specific and may need to be preserved.
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 @bios_files_Request. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →