Lenovo X1 Yoga 4th Gen Laptop (ThinkPad) - Type 20QF BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Device | Laptop |
| Format | RAR |
| Size | 8.2 MB |
| Added | September 17, 2026 |
| Updated | |
| Original file name | X1 Yoga 4th Gen Laptop (ThinkPad) - Type 20QF.rar |
Where to get the file
Opens the matching file on RM Schematics, or its source details if it is not catalogued there yet.
Alternative links
- BIOS BIN FILES Posted: 9/17/26 ● live
Description
BIOS dump for a Lenovo laptop listed as X1 Yoga 4th Gen Laptop (ThinkPad) - Type 20QF, delivered as a RAR archive of about 8.2 MB. The facts do not give a board number, revision, chip size or any cleaning or EC notes, so confirm those against your own board before using it. A BIOS dump like this is used to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update.
Description generated from the catalog data. ·
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Questions about this file
How do I flash this BIOS dump?
Write it to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and keep the original contents first, and check that the chip size matches the dump.
Will this BIOS work on my board?
Only if the board number and revision match: Lenovo X1 Yoga 4th Gen Laptop (ThinkPad) - Type 20QF. Dumps from a different board or revision can leave the board dead.
What does “clean ME” mean?
The Intel ME region in the dump has been reset, so it can be used on another board of the same model. Keep your original dump and transfer serial numbers if needed.