Elitebook 850 G5 BIOS bricked

[Thomas_G]

Hello,

I have an EliteBook 850 G5. After a Windows update, including a BIOS update, the notebook turns on, but the screen remains black, and the fans spin at high speed—nothing else happens.

I assume the BIOS update failed, so I searched for the BIOS chip.

I found a Winbond chip located between the RAM and the hard drive, which has a size of 32 MB.

However, the BIOS update available on HP's website is only 17 MB in size. I used the update version that was previously installed when the notebook was still working.

Can the corrupted BIOS on the 32 MB chip be repaired using the BIOS update?



HP Elitebook 850 G5
SN 5CG9239N7M
old BIOs Q78 Vers. 1.27

[hoaca388]

Hello,

I have an EliteBook 850 G5. After a Windows update, including a BIOS update, the notebook turns on, but the screen remains black, and the fans spin at high speed—nothing else happens.

I assume the BIOS update failed, so I searched for the BIOS chip.

I found a Winbond chip located between the RAM and the hard drive, which has a size of 32 MB.

However, the BIOS update available on HP's website is only 17 MB in size. I used the update version that was previously installed when the notebook was still working.

Can the corrupted BIOS on the 32 MB chip be repaired using the BIOS update?



HP Elitebook 850 G5
SN 5CG9239N7M
old BIOs Q78 Vers. 1.27

Post 32MB chip content even if it's broken

[Thomas_G]

Hi, here is the file from the 32 MB Chip

[hoaca388]

Hi, here is the file from the 32 MB Chip

Read the chip again, it's only 78.4KB after compression.

[Thomas_G]

Hey, here is the new file, it's now 11 MB

I'm sorry

[Thomas_G]

The system was previously running, as far as I recall, with BIOS version Q78 Version 1.27. I have now downloaded the previous update to Version 27 from HP's homepage and extracted it. I have placed this into the attachment, and its size is 23 MB.

[hoaca388]

The system was previously running, as far as I recall, with BIOS version Q78 Version 1.27. I have now downloaded the previous update to Version 27 from HP's homepage and extracted it. I have placed this into the attachment, and its size is 23 MB.

HP EliteBook 850 G5 Base Model Notebook PC