HP ProBook 4540s
x3401 bios bin
x3401 bios bin
About this board
This thread is for the HP ProBook 4540s 8M.
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)
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 HP ProBook 4540s 8M in File Finder.
Attachments
HP 4540s bios bin.rar
3.4 MB · Views: 32
3.4 MB · Views: 32
