Lenovo ThinkPad T420 LNVH-41-AB5700-H00G
BIOS
4.9 MB · first posted in BIOS Archive
Get on TelegramWhat the file name tells us
| Brand | Lenovo |
|---|---|
| Model | Lenovo ThinkPad T420 |
| Kind | BIOS |
| Format | .rar |
| Archive size | 4.9 MB |
| First posted | 2020-04-20 |
| Channel | BIOS Archive |
Parsed automatically from the file name and caption. Always compare the board number with the one printed on your board.
Same file in other posts
| Channel | Posted | Size | Link |
|---|---|---|---|
| BIOS Archive | 2020-04-20 | 4.9 MB | Open post |
| BIOS Archive | 2021-08-01 | 5.0 MB | Open post |
What this kind of file is 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 |
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Schematic.pdf
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