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- 4540s-fixed.bin
Fixed BIOS image for the HP 4540s, zipped to 3.63 MB, with the name pointing to a single repaired binary inside.
BIOS · 3.63 MB · 26 Jan 2017BIOS zip—3.63 MB - 4540s O
An 8 MB .bin firmware file for the 4540s model. The extra O in the name is not explained and could mean original, but treat that only as a guess.
BIOS · 8.00 MB · 12 Oct 2025BIOS bin—8.00 MB - 4540s O
Second copy, marked (2), of the 4540s O firmware image, 8 MB in binary format. The name has no board number, version or ME status, and the meaning of O is not stated.
BIOS · 8.00 MB · 12 Oct 2025BIOS bin—8.00 MB - HP Probook P4540s dis to uma mack ok jmd mack
DIS to UMA conversion package for the HP ProBook 4540s, marked as working and credited to JMD MACK, the author of the method.
Archive · 7.90 MB · 23 Feb 2020Archive rar—7.90 MB - hp4540 OK OK
Firmware dump for an HP 4540, which by naming convention is a ProBook 4540s, stored as an 8.00 MB binary.
BIOS · 8.00 MB · 31 Oct 2022BIOS bin—8.00 MB - hp4540 OK OK
An 8 MB raw BIOS binary labelled for the HP 4540, most likely a ProBook 4540s, with the name marking it as checked and working.
BIOS · 8.00 MB · 26 Jan 2017BIOS bin—8.00 MB - hp4540 OK OK
BIOS firmware for the HP ProBook 4540s, marked twice as OK in the name, which suggests the uploader tested the dump and found it working.
BIOS · 3.37 MB · 26 Jan 2017BIOS rar—3.37 MB