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- B40-30 All-in-One (Lenovo) - O0CKT23ABIOS · 4.00 MB · 9 May 2025BIOS rom—4.00 MB
- AFS LENOVO B40-30 ALL-IN-ONEBIOS · 2.22 MB · 1 Feb 2024BIOS rar—2.22 MB
- LENOVO B40-30 ALL-IN-ONE
Firmware package of 2.27 MB for the Lenovo B40-30 laptop, labelled all-in-one, which usually means the archive bundles the BIOS and related images in one set.
BIOS · 2.27 MB · 13 Mar 2021BIOS rar—2.27 MB