BIOS file named MQ77TN, marked new, 4.70 MB as a RAR archive. The name looks like a board or platform code, but it gives no clear brand, laptop model or revision, so the target hardware must be confirmed from markings on the PCB or the original firmware. A BIN dump like this is normally written to the SPI flash with a programmer to recover a non-booting board. Back up the existing chip before erasing, and make sure the image size matches the flash 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 @hrtechno. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @hrtechno | 13 Aug 2020 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 29 Apr 2025 | Open file on RM Schematics |
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 →