BIOS A1286 820-3330-B_4MBDownload…This content is for 30-days, 90-days, 180-days, and 365-day members only.Login Join Now Post navigationApple A1286 J31 051-9585 820-3330-B BIOS ACER ASPIRE 3 A315-53 C5V01 LA-E891P BIOS MAIN + EC TESTED OK