Firmware archive for the Acer Extensa 5620Z on a Wistron-made board, a 557 KB RAR. No project name, board number or version is given beyond the ODM. Wistron builds many Acer models, so check the project code and board number printed on the PCB against the contents. The dump is meant for reflashing the BIOS chip with a programmer on a board that fails to start; back up the original first and make sure the image size matches the chip.
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 @bios_laptop. 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 | |
|---|---|---|
| @bios_laptop | 15 Jun 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 27 May 2023 | 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 →