Firmware image for the ZX-A88M2+ motherboard at version 1.21, a 1.62 MB RAR, later than the separate 1.0 release of the same board. Technicians use these dumps to recover desktop boards with a damaged BIOS by programming the SPI flash directly. Before writing, confirm the board model on the PCB, make a backup of the existing chip, and check that the image size matches the flash chip. If the board was originally running an older version, consider whether hardware differences between revisions apply.
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 (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 24 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 28 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 2026 | 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 →