BIOS image for the 900HD netbook, marked as unlocked and packed in a 628 KB RAR file. It is intended for direct programming of the mainboard firmware chip when the original is damaged or locked, a common fix for units stuck on a black screen. Read the existing chip with your programmer and keep that copy, verify the extracted binary matches the chip capacity, and ensure the target board is a 900HD rather than a similar model with different firmware before writing.
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 @schematicslaptop. Enginerys does not host this file.
All sources (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 29 Dec 2020 | Open file on RM Schematics |
| @LaptopsBoardview | 23 Jan 2021 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @boardviewsandachematics | 2 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 4 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 14 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 →