Lenovo 305-15IBY BIOS - 9CCN32WW (V2.10) - ZIWB0 .BIN 8MB Fix HAMMER Memory BIOS security Issue. Shared model: Ideapad 305-15IBY Lenovo B40-30 Lenovo B50-30 Lenovo B50-30 touch Lenovo E40-30 >> LENOVO BIOS