Firmware image set for the Toshiba Satellite Radius P55W-B5220 convertible, built on motherboard DA0BLSMB8E0, delivered as a 3.68 MB ZIP. The DA0 code follows the Quanta board-numbering pattern, so Quanta is the ODM behind this Toshiba unit. Repair shops use such dumps to reflash a corrupted SPI BIOS chip using a CH341A or similar programmer and software such as AsProgrammer or NeoProgrammer. Match the board number on the PCB before writing, save the original contents, and confirm the image fits the chip size.
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 →