Firmware for the D-Link DWR-M921 4G router, hardware revision A2, version 1.6, packed as a 7.24 MB RAR. It is used to restore a router with corrupted firmware, either through the recovery web page or by writing the flash chip directly with a programmer. Hardware revision matters with D-Link devices, so check the label underneath the unit reads A2 before flashing. Keep a backup of the current flash, as it may hold calibration and MAC data unique to the device.
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 →