Firmware package for the TP-Link TL-MR100 4G LTE router, EU variant, with the name pointing to hardware version 1.02. The RAR archive of about 4 MB likely holds the router firmware image or a flash dump. Technicians use such files to recover a bricked unit through the web recovery page or by writing the SPI flash directly with a programmer. Confirm the hardware version on the label under the router matches before flashing, since images for other revisions or regions can leave the device unbootable, and save the original flash contents first.
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 →