- Revisions
- Rev 2.0
- Files
- 1
- Updated
This page collects service files for the Asus M509D board, fitted to the Asus M509D and Asus M509DJ.
The catalog has one BIOS file for it, posted in 2021. Each download button opens the original Telegram post.
The files are marked Rev 2.0; other revisions of the same board can differ in parts and layout.
Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.
Compatible models
- Asus M509D
- Asus M509DJ
Files for Asus M509D
BIOS and firmware 1 All bios and firmware →
- ASUS M509D (M509DJ-BR044T) MB- X409DL REV 2.0 BIOS.zipDownload from Telegram
Frequently asked questions
Which revision of Asus M509D do I have?
Files for this board mention Rev 2.0. 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 Asus M509D BIOS?
Read the original chip with a programmer and save two copies before writing anything. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.
Guides for this board
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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