Firmware archive of about 2.25 MB for a board named Z5WAK with Compal number LA-B221P, although the name is written loosely with spaces. The laptop model and brand are not stated, so identify the machine from the PCB before use. Compal LA-xxxxP boards are made for several laptop brands, so the sticker or silkscreen is the reliable reference. Extract the RAR, check the dump size against the flash chip, read and keep the original contents, and then program the SPI chip with a hardware programmer such as a CH341A.
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 (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 27 Aug 2020 | Open file on RM Schematics |
| @biositechyangiyer | 27 Aug 2020 | Open file on RM Schematics |
| @biositechyangiyer | 10 Sept 2020 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | 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 →