10303-3 – Lenovo ThinkPad X1
10303-3 is the Wistron main board used in the Lenovo ThinkPad X1 and Lenovo ThinkPad X1 13.3. The catalog lists 4 files for it: 4 BIOS files.
BIOS images are 1 MB and 64 MB. First posted in April 2019 in BIOS Archive and BIOS Skema Boardview Laptop.
BIOS dumps 4
Board facts
| Board number | 10303-3 |
|---|---|
| Designed by | Wistron |
| Also known as | 48.4N405.031 |
| BIOS chip size | 1 MB, 64 MB |
| Flash chip | MX25L5121EOC |
| First seen | 2019-04-07 |
| Source channels | BIOS Archive, BIOS Skema Boardview Laptop |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 10303-3
- Lenovo ThinkPad X1
- Lenovo ThinkPad X1 13.3
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 |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
What BIOS chip size does 10303-3 use?
The BIOS images for 10303-3 are 1 MB and 64 MB. Flash chips named in the files: MX25L5121EOC.
Which laptops use the 10303-3 board?
Files in the catalog link 10303-3 to the Lenovo ThinkPad X1 and Lenovo ThinkPad X1 13.3.
Who designed the 10303-3 board?
10303-3 is a Wistron 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.