BIOS firmware package for a Chinese-made mini PC or small motherboard identified only by the code zO-8257UTA-6C1L, packed as an 18.3 MB RAR archive. The name gives no brand, chipset or flash size, so open the archive and check the image size against the SPI chip on the board before writing anything. Technicians use such dumps to revive a board with corrupted firmware using a CH341A or similar programmer. Always read and save the original chip contents first, and confirm the board marking matches the code in the name.
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 @skclappybios. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @skclappybios | 21 Jul 2026 | Open file on RM Schematics |
| @dtechbios | 21 Jul 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 →