BIOS image for the Acer Aspire 5742, labelled with the Intel HM55 chipset. At 128 KB it is far too small to be a full SPI image for an HM55 platform, so it is most likely a partial region or the EC/KBC firmware rather than the main BIOS. Compare its size against the capacity of the chip you intend to program before writing anything. Read and save the original contents with a programmer such as a CH341A first, and confirm the board number on the PCB matches the machine the dump came from.
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 @jdbiosworld. Enginerys does not host this file.
All sources (11)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @jdbiosworld | 1 Oct 2020 | Open file on RM Schematics |
| @biosbin | 1 Oct 2020 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
| @jdbiosworld | 24 Dec 2020 | Open file on RM Schematics |
| @abgm_manutencao_bios | 17 Feb 2021 | Open file on RM Schematics |
| @abgm_manutencao_bios | 23 Oct 2021 | Open file on RM Schematics |
| @generalbios | 22 Sept 2023 | Open file on RM Schematics |
| @generalbios | 25 Sept 2023 | Open file on RM Schematics |
| @generalbios | 26 Sept 2023 | Open file on RM Schematics |
| @generalbios | 15 Dec 2024 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 28 Apr 2025 | Open file on RM Schematics |
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →