Working BIOS for the ET2231I all-in-one board at revision 1.3, with a BTC-202 B reference in the name, packed into a 5.31 MB RAR archive and reported fully functional. The ET2231I is an ASUS model, though the name does not state the brand explicitly. Use an SPI programmer to write the image after reading and saving the existing chip contents. Compare the file size with the flash capacity and confirm the board reads revision 1.3, since a separate dump exists for revision 1.2.
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 | 20 Feb 2024 | Open file on RM Schematics |
| @generalbios | 6 Mar 2024 | Open file on RM Schematics |
| @generalbios | 14 Jul 2024 | Open file on RM Schematics |
| @generalbios | 4 Nov 2024 | 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 →