hello, i want to update my motherboard through Q-flash
it said
mode : h61m-ds2 4.0
version : F2
but i dont know which one should i use to update it, im afraid i ruin my bios, because i never update bios
by checking its official site, there are many rev. of this motherboard
rev. 1.0 till rev. 5.0 and mine is rev. 4.0
rev. 4.0 (mine)
https://www.gigabyte.com/Motherboard/GA-H61M-DS2-rev-40#support-dl-bios
rev. 5.0
https://www.gigabyte.com/Motherboard/GA-H61M-DS2-rev-50#support-dl-bios
what should i pick? rev. 4.0 or rev. 5.0

it said
mode : h61m-ds2 4.0
version : F2
but i dont know which one should i use to update it, im afraid i ruin my bios, because i never update bios
by checking its official site, there are many rev. of this motherboard
rev. 1.0 till rev. 5.0 and mine is rev. 4.0
rev. 4.0 (mine)
https://www.gigabyte.com/Motherboard/GA-H61M-DS2-rev-40#support-dl-bios
rev. 5.0
https://www.gigabyte.com/Motherboard/GA-H61M-DS2-rev-50#support-dl-bios
what should i pick? rev. 4.0 or rev. 5.0