BIOS image covering the Acer Aspire E5-531, E5-531G and E5-531P, packed in a 3.88 MB ZIP and tagged with the code Z5WAH, which is probably a board or project identifier. Since no board number is given, check the PCB markings and graphics version before flashing. Images of this kind help restore a machine that fails to start after a failed BIOS update or flash corruption. Read and archive the original chip contents, verify the image size matches the chip and use an SPI programmer to write it.
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 (10)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 10 Dec 2019 | Open file on RM Schematics |
| @biositechyangiyer | 19 May 2020 | Open file on RM Schematics |
| @laptexlaptopbios | 10 Jul 2020 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
| @one5technology | 21 Nov 2020 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 25 May 2022 | Open file on RM Schematics |
| @skclappybios | 10 Apr 2024 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →