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- X409FB ECBIOS · 128 KB · 10 May 2025BIOS bin—128 KB
- ASUS X409FB RE 2.0 WORKING BIOS & EC 100%BIOS · 4.98 MB · 15 Dec 2024BIOS rar—4.98 MB
- ASUS X409FB REV2 0 BIOS & EC telegram BIOS Repair 2025 09 16BIOS · 5.48 MB · 18 Sept 2025BIOS zip—5.48 MB
- ASUS X409FB RE 2 0 WORKING BIOS & EC 100% telegram BIOS Repair 2025BIOS · 5.30 MB · 18 Sept 2025BIOS zip—5.30 MB
- ASUS X409FB RE 2.0 WORKING BIOS & EC 100%
Firmware package for the ASUS X409FB laptop, board revision 2.0, containing both the BIOS and the EC (embedded controller) firmware, both marked as working.
BIOS · 6.12 MB · 8 Nov 2023BIOS rar—6.12 MB - ASUS X409FB REV2.0 BIOS & EC
Combined BIOS and EC firmware package for the ASUS X409FB laptop mainboard, revision 2.0, in a RAR archive of about 5.19 MB.
BIOS · 5.19 MB · 27 Mar 2024BIOS rar—5.19 MB