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- ASUS X421EAYB R 2.0BIOS · 16.0 MB · 10 May 2025BIOS bin—16.0 MB
- ASUS X421EAYB R2.0 TESTED OK telegram BIOS Repair-2025-09-16BIOS · 7.71 MB · 18 Sept 2025BIOS zip—7.71 MB
- ASUS X421EAYB R 2 0 WORKING BIOS 100% telegram BIOS Repair 2025BIOS · 7.60 MB · 18 Sept 2025BIOS zip—7.60 MB
- bios asus x421eayb rev 2.0 bkBIOS · 16.0 MB · 23 Nov 2025BIOS bin—16.0 MB
- ASUS X421EAYB R2.0 TESTED OK
Firmware dump for the ASUS X421EAYB laptop, board revision 2.0, marked as tested OK, packaged as a RAR of roughly 9.7 MB.
BIOS · 9.71 MB · 12 Mar 2024BIOS rar—9.71 MB - ASUS X421EAYB R 2.0 WORKING BIOS 100%
Working BIOS for the ASUS X421EAYB mainboard revision 2.0, reported as fully tested. Packed in a 9.80 MB RAR, the image is intended for reprogramming the SPI flash when…
BIOS · 9.80 MB · 21 Sept 2022BIOS rar—9.80 MB