11270-4 – Lenovo ThinkPad L530
The 11270-4 (Wistron) motherboard is found in the Lenovo ThinkPad L530. ChambersDesignInc.com has indexed 4 files for this board — 3 BIOS files and 1 boardview.
The BIOS dumps are 1 MB images. First posted in November 2021 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 3
Boardviews 1
Board facts
| Board number | 11270-4 |
|---|---|
| Designed by | Wistron |
| Platform group | 11XXX |
| Also known as | 48.4SE05.041, 48.4SF06.041 |
| BIOS chip size | 1 MB |
| First seen | 2021-11-02 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 11270-4
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.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the 11270-4 board?
11270-4 is a Wistron board number used by Lenovo.
Which laptops use the 11270-4 board?
Files in the catalog link 11270-4 to the Lenovo ThinkPad L530.
What BIOS chip size does 11270-4 use?
The BIOS images for 11270-4 are 1 MB.
Is there a boardview for 11270-4?
Yes, 1 boardview file in .bdv format.
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.