Lenovo Ypga S940 12IWL LS40
Lenovo Yoga S940-14IWL 81Q7
LS40 MB 18764-1 448.0GL14 0011
Lenovo Yoga S940-14IWL 81Q7
LS40 MB 18764-1 448.0GL14 0011
About this board
This thread is for the Lenovo Yoga S940-14IWL LS40 with main board 18764-1.
Lenovo had this board built by Wistron; Wistron board numbers are 5–6 digits plus a revision. Check the number printed on the PCB before you download.
Files usually needed for this board
- BIOS (full SPI chip dump, .bin)
- EC / KBC firmware, if the board uses a separate EC chip
- Schematic (PDF)
- Boardview (.brd / .bdv / .cad)
Common cases: dead board after an interrupted BIOS update, ME region errors, missing serial number or UUID after a board swap, or a password lock.
Back up the original dump first — it contains machine-specific data (serial, UUID, MAC, ME), and you will want it if anything goes wrong.
If you have a working file for this board, please share it below. More files: search 18764-1 in File Finder.
Attachments
Yoga S940-14IWL LS40 MB 18764-1 AKCN38WW BIOS.rar
6 MB · Views: 3
6 MB · Views: 3
