S540-15IWL GTX (ideapad)
BIOS nb8608_mb_v4
bwcn15ww OK
BIOS nb8608_mb_v4
bwcn15ww OK
About this board
This thread is for the GTX ideapad S540-15IWL nb8608.
Compare the board number printed on the PCB (near the RAM slots or under the battery) with the files before you flash.
From the title: discrete graphics.
What this thread covers
- BIOS (full SPI chip dump, .bin)
- 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 GTX ideapad S540-15IWL nb8608 in File Finder.
Attachments
BWCN15 bin.zip
5.5 MB · Views: 11
5.5 MB · Views: 11
EC.bin.zip
41.5 KB · Views: 12
41.5 KB · Views: 12
