Lenovo B4400 12300-2M Rev:2.1
biosbin.zip
biosbin.zip
About this board
This thread is for the Lenovo B4400 with main board 12300-2M.
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. Board revision: 2.1. Match the revision as well as the board number.
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.
Before flashing, always read and save the original chip. It holds the serial number, UUID, MAC address and ME data for that exact machine.
Have a tested file for 12300-2M? Reply below and help the next technician. Looking for something else? Search all files in the File Finder.
Attachments
lb440 48.4lw04.02m 12300-2m.bin.zip
3.6 MB · Views: 2
3.6 MB · Views: 2
