BIOS A1286 820-3330-B_4MBDownload…Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here Post navigationApple A1286 J31 051-9585 820-3330-B BIOS ACER ASPIRE 3 A315-53 C5V01 LA-E891P BIOS MAIN + EC TESTED OK