12222-2 – Acer Aspire S7-191
The 12222-2 (Wistron) motherboard is found in the Acer Aspire S7-191. The catalog lists 3 files for it: 3 BIOS files.
The BIOS dumps are 2 MB and 4 MB images. The earliest file dates from December 2018 (BIOS Archive).
BIOS dumps 3
From the uploader
Acer Aspire S7-191-53334G12ass (MS2363)
Wistron Helium MB 12222-2N = 12222-1
48.4WD04.02N
Intel i5-3337U SR0XL, BD82HM77 SLJ8C
The BIOS of Acer Aspire S7-191-53334G12ass (MS2363) (Wistron Helium MB 12222-2N 48.4WD04.02N; Intel i5-3337U SR0XL, BD82HM77 SLJ8C)
Board facts
| Board number | 12222-2 |
|---|---|
| Designed by | Wistron |
| Platform group | 12XXX |
| Also known as | 48.4WD04.02N |
| BIOS chip size | 2 MB, 4 MB |
| CPU generation | Intel 3rd gen |
| First seen | 2018-12-31 |
| Source channels | BIOS Archive |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 12222-2
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
Which laptops use the 12222-2 board?
Files in the catalog link 12222-2 to the Acer Aspire S7-191.
What BIOS chip size does 12222-2 use?
The BIOS images for 12222-2 are 2 MB and 4 MB.
Who designed the 12222-2 board?
12222-2 is a Wistron board number used by Acer.
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.