BIOS firmware for the Acer Aspire M3 on a board marked JM50, revision 2.1, packed as a 2.85 MB RAR. JM50 is the platform or project code shown in the name, and the same code also appears with MA50 in related Acer M3 files. No full ODM board number is given, so verify the markings printed on the PCB before use. Technicians flash such images onto the SPI chip with a programmer to revive boards with damaged firmware; read and keep the original contents first and confirm the image size fits.
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.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 12 Dec 2018 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 29 Oct 2019 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | 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 →