48.4RQ01.011 – Lenovo ThinkPad X1
The 48.4RQ01.011 (Wistron) motherboard is found in the Lenovo ThinkPad X1. The catalog lists 2 files for it: 2 BIOS files.
BIOS images are 1 MB. First posted in October 2019 in BIOS Archive.
BIOS dumps 2
Board facts
| Board number | 48.4RQ01.011 |
|---|---|
| Designed by | Wistron |
| BIOS chip size | 1 MB |
| First seen | 2019-10-22 |
| Source channels | BIOS Archive |
| About the number | Wistron PCB part numbers (448.xxxxx.xxxx or 48.4xxxx.xxx) identify the bare PCB of a Wistron board. |
Laptops that use 48.4RQ01.011
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
Who designed the 48.4RQ01.011 board?
48.4RQ01.011 is a Wistron board number used by Lenovo.
Which laptops use the 48.4RQ01.011 board?
Files in the catalog link 48.4RQ01.011 to the Lenovo ThinkPad X1.
What BIOS chip size does 48.4RQ01.011 use?
The BIOS images for 48.4RQ01.011 are 1 MB.
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.