11269-2 – Lenovo M495
The 11269-2 (Wistron) motherboard is found in the Lenovo M495 and Lenovo Wifi E4325. The catalog lists 3 files for it: 2 BIOS files and 1 schematic.
First posted in October 2020 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 2
Schematics 1
Board facts
| Board number | 11269-2 |
|---|---|
| Designed by | Wistron |
| Platform group | 11XXX |
| Also known as | 48.4XE02.021 |
| First seen | 2020-10-18 |
| 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 11269-2
- Lenovo M495
- Lenovo Wifi E4325
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 schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .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
Which laptops use the 11269-2 board?
Files in the catalog link 11269-2 to the Lenovo M495 and Lenovo Wifi E4325.
Who designed the 11269-2 board?
11269-2 is a Wistron board number used by Lenovo.
Is there a boardview for 11269-2?
No boardview has been indexed for 11269-2 yet; the schematic is available on this page.
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.