BIOS plus EC firmware set for the Acer Aspire A315-53 on Compal board LA-E891P, with C5V01 the board family code. The 6.35 MB RAR includes EC images for the UC2, UC3 and KBEC positions, referring to the BIOS and embedded controller chips on the board. LA- numbering belongs to Compal. A technician writes these to the SPI flash with a programmer when the laptop shows no power or a corrupted BIOS. Read and save the original dump first, and confirm board number and chip size before flashing.
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 | 19 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | 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 .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 →