BIOS dump for a Dell 5423 laptop, likely the Inspiron 14z, with the DMB40 project and Wistron board number 11289-1 in the name, for an Intel platform. The 8.00 MB BIN matches a 64 Mbit SPI flash chip. Wistron numbers Dell boards in this five-digit with dash suffix form. Use it to recover a board with no display or a corrupted BIOS by writing it with a programmer. Back up the original chip first, since it carries service tag data, and verify the board number.
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 @laptop_bios_schematic. 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 | |
|---|---|---|
| @laptop_bios_schematic | 10 Sept 2021 | Open file on RM Schematics |
| @cidschematicandboardviewofficial | 27 Jan 2025 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 28 Apr 2025 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 14 Jul 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 →