HP · laptop motherboard

HP EliteBook 840 G9 DAN35MB28B0

BIOS
Board code
DAN35MB28B0
Platform
Quanta N35
Made by
Quanta
Revisions
Rev B
Files
1
Updated

HP EliteBook 840 G9 DAN35MB28B0 is a laptop motherboard designed by Quanta and used in the HP EliteBook 840 G9.

The catalog has one BIOS file for it, posted in 2025. Each download button opens the original Telegram post.

The files are marked Rev B; other revisions of the same board can differ in parts and layout.

BIOS notes: file names mention 32 MB chip sizes; some archives also hold EC/KBC firmware. Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.

Also listed under platform Quanta N35.

Compatible models

Files for HP EliteBook 840 G9 DAN35MB28B0

BIOS and firmware 1 All bios and firmware →

Notes from the source posts

  • You can give us as a gift.

Frequently asked questions

Which laptops use the DAN35MB28B0 motherboard?
File names in the catalog tie DAN35MB28B0 to the HP EliteBook 840 G9. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of DAN35MB28B0 do I have?
Files for this board mention Rev B. The revision is printed on the PCB silkscreen, usually next to the board code. Pick files with the same revision when you can; if yours is not listed, the closest revision is usually fine for the schematic but check part positions in the boardview carefully.
What should I check before flashing the DAN35MB28B0 BIOS?
Read the original chip with a programmer and save two copies before writing anything. File names for this board mention 32 MB images; the dump size must match your chip. Some archives include EC/KBC firmware, which may need to be written to a separate chip. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.

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Files are hosted on Telegram by third parties; ExcitingSpas.com only links to public posts. Check that a file matches your board before using it. Disclaimer · Report a file