Winflash_Win81_64_VER2420.zip March 6, 2016 Operating system Windows 8.1 File type BIOS Version V2.42.0 64-bit
ATKPackage_Win81_64_VER100037.zip July 19, 2016 Operating system Windows 8.1 File type BIOS Version V1.0.0037 64-bit
ATKPackage_Win81_64_VER100036.zip March 6, 2016 Operating system Windows 8.1 File type BIOS Version V1.0.0036 64-bit
N551JKAS203.zip February 14, 2015 Operating system Windows 10 Windows 8.1 File type BIOS Version 203 64-bit
N551JKAS202.zip February 14, 2015 Operating system Windows 10 Windows 8.1 File type BIOS Version 202 64-bit
ATKPackage_Win10_64_VER100039.zip July 19, 2016 Operating system Windows 10 File type BIOS Version V1.0.0039 64-bit
ATKPackage_Win10_64_VER100050.zip January 1, 2017 Operating system Windows 8.1 File type BIOS Version V1.0.0050 64-bit