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- X556UF ECBIOS · 128 KB · 10 May 2025BIOS bin—128 KB
- X556UF ECBIOS · 128 KB · 22 Jul 2020BIOS bin—128 KB
- Asus X556UF=8=X556UJ Rev 2.0
ASUS firmware archive shared by the X556UF and X556UJ notebooks, intended for mainboard revision 2.0 according to the name.
BIOS · 3.85 MB · 28 May 2019BIOS zip—3.85 MB