L13 Yoga Gen 4 (Type 21FJ, 21FK) LFR-2 223003-1
CLEAN ME BIOS
MAIN 64MB
EC BIOS 16MB
CLEAN ME BIOS
MAIN 64MB
EC BIOS 16MB
About this board
Files for the L13 Yoga Gen 4 (Type 21FJ 21FK) LFR-2 motherboard, board number 223003-1.
The board was manufactured by Wistron for Lenovo. Wistron board numbers are 5–6 digits plus a revision, so you can confirm it on the PCB silkscreen.
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)
Usually needed when the laptop powers on with a black screen after a BIOS update, is stuck in a boot loop, or is locked with a BIOS password.
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 223003-1 in File Finder.
Attachments
L13 Yoga Gen 4 (Type 21FJ, 21FK) LFR-2 223003-1 CLEAN ME.rar
6.9 MB · Views: 44
6.9 MB · Views: 44
L13 Yoga Gen 4 (Type 21FJ, 21FK) LFR-2 223003-1 MAIN.rar
15.7 MB · Views: 56
15.7 MB · Views: 56
