BIOS firmware for the Dell Inspiron 15 3521, delivered as a 6.19 MB ZIP archive. No motherboard number or revision is given, and this model was produced on more than one board, so check the number printed on your PCB before relying on the image. The dump is written to the SPI chip with an external programmer when the system will not POST or shows nothing on screen. Back up the original chip first, since it holds the service tag, and confirm the image size matches the flash capacity.
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 @bios_laptop. 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 | |
|---|---|---|
| @bios_laptop | 15 Jun 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 27 May 2023 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →