BIOS UPDATE ERROR FLASH YOUR BIOS TO THE SAME VERSION 1

[HELLAL MAHMOUD]

HELLO
PLEASE CAN YOU HELP I BUY ACER M3-581T WHIT WINDOWS 7 PREINSTALLED BIOS 1.13 NOW I HAVE INSTALLED WINDOWS WIN PRO 8.1 x64 ENG INTL 1PK DSP OEI DVD
AND NOW I WOULD LIKE TO FLASH FROM 1.13 TO 2.17 FOR I ENABLE THE UEFI AND BOOT SECURE BUT I CANT BECAUSE MAYBE THE BIOS IS LOCKED AND WHEN I FLASH FROM 1.13 TO 2.17, I GET A ERROR MESSAGE PLEASE FLASH YOUR BIOS TO SAME VERSION 1
BIOS VERSION DATE INSYDE CORP V1.13 22/10/2012
SMBIOS VERSION 2.7
link http://www.acer.co.uk/ac/en/GB/content/drivers
PLEASE NEED HELP
THANK YOU BEST REGARD