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HP HP ELLITE Book 840 G8

Laptops and Desktop Bios, Schematic and Boardview Files And Repairing Discussion
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here problem is when started is code error (HP Endpoint Security Controller Problem),after that i did Windows update ,Lap top is shut down and wouldnt turn on again.

need fixed bios..
 
About this board

Files for the HP ELLITE Book 840 G8 motherboard.

Compare the board number printed on the PCB (near the RAM slots or under the battery) with the files before you flash.

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)

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 ELLITE Book 840 G8 in File Finder.

Attachments

HP ELLITE Book 840 G8 – endpoint HP ELLITE Book 840 G8 – photo_2025-10-26_19-59-07
MAIN.bin
32 MB · Views: 12
ec build.bin
32 MB · Views: 5
Click to expand...
i write another files main and EC,and now this error on screen......is possibly fix that????
 

Attachments

HP ELLITE Book 840 G8 – photo_2025-10-31_00-25-24
i still havent solved the problem with this model (840 G8), Please lets try once more to fix the bios,or we can try to manually enter the information (model,UUID,product,Feature Byte, ) into the BIOS.
I am sending to attach old and Ec FILES AGAIN-when i turn it on the first time it shows the HP Endpoint error,then it shuts down by itself and cant turn it on again.
 

Attachments

HP ELLITE Book 840 G8 – photo_2025-11-09_21-05-07 HP ELLITE Book 840 G8 – photo_2025-11-09_21-04-59
main old.BIN
32 MB · Views: 6
ec old.BIN
32 MB · Views: 6
peshagrobar said:
i still havent solved the problem with this model (840 G8), Please lets try once more to fix the bios,or we can try to manually enter the information (model,UUID,product,Feature Byte, ) into the BIOS.
I am sending to attach old and Ec FILES AGAIN-when i turn it on the first time it shows the HP Endpoint error,then it shuts down by itself and cant turn it on again.
Click to expand...
Ec use original
 

Attachments

main old fixed T37 BIOS.rar
13.4 MB · Views: 8
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