Power off the PC, hold the Windows + B keys, and then hold the power button for 1–3 seconds to trigger an automatic BIOS recovery .
: Use the F1 key at startup to find your System Board ID and SSID (often 2ABF for this model) to ensure the file is compatible. hp pro 3500 series mt bios bin file better
Right-click the downloaded .exe file (e.g., sp70375.exe ) and use a tool like or WinRAR to "Extract to folder". Power off the PC, hold the Windows +