12208-1 – Lenovo Wifi B490
The Lenovo Wifi B490 and Lenovo B590-WISTRON are built on the 12208-1 board designed by Wistron. 8 files are indexed for this board: 6 BIOS files and 2 schematics.
The earliest file dates from April 2019 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 6
Schematics 2
Board facts
| Board number | 12208-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 12XXX |
| Also known as | 48.4WZ01.011, 48.4WZ02.011 |
| GPU | N13M-GE1-B-A1 |
| Graphics | discrete GPU |
| First seen | 2019-04-06 |
| 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 12208-1
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
Is there a boardview for 12208-1?
No boardview has been indexed for 12208-1 yet; the schematic is available on this page.
Which laptops use the 12208-1 board?
Files in the catalog link 12208-1 to the Lenovo Wifi B490 and Lenovo B590-WISTRON.
Who designed the 12208-1 board?
12208-1 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.