lenovo chrome, BM5866 V1.3 300E/500E
BIOS,
BM5866 REV1.3.pdf Schematics
BIOS,
BM5866 REV1.3.pdf Schematics
About this board
This thread is for the Lenovo chrome BM5866 300E/500E.
Compare the board number printed on the PCB (near the RAM slots or under the battery) with the files before you flash.
What this thread covers
- BIOS (full SPI chip dump, .bin)
- 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 Lenovo chrome BM5866 300E/500E in File Finder.
Attachments
lenovo BM5866 V1.3 W25Q128FW1.8V.BIN
16 MB · Views: 17
16 MB · Views: 17
V1.3 300E 500E BM5866.pdf
1.3 MB · Views: 26
1.3 MB · Views: 26
