BM5291 – Lenovo S215
The BM5291 (Bitland) motherboard is found in the Lenovo S215. ChambersDesignInc.com has indexed 2 files for this board — 2 BIOS files.
Revisions seen in file names: 1.3 and 1.36. First posted in January 2019 in BIOS Archive.
BIOS dumps 2
Board facts
| Board number | BM5291 |
|---|---|
| Designed by | Bitland |
| Revisions | 1.3, 1.36 |
| First seen | 2019-01-08 |
| Source channels | BIOS Archive |
| About the number | Bitland boards for Lenovo IdeaPad models are named BM followed by four digits. |
Laptops that use BM5291
- Lenovo S215
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Which laptops use the BM5291 board?
Files in the catalog link BM5291 to the Lenovo S215.
Who designed the BM5291 board?
BM5291 is a Bitland board number used by Lenovo.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.