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Z690 Apex Bios B problem with 13900kf

Pesari
Level 7
Hi, i have z690 apex and i updated intel management engine to the motherboard A bios with my old 12gen cpu. Then i bought 13gen cpu and sold my old cpu. I didnt realise back then that i have to update intel management engine to both bioses separtely and now i cant use B bios. Tried to post but it is stuck with post code 55 ”memory not detected” or something like that. Switch to A bios and it work fine.*

Is there any other way to update intel management engine to the B bios? Is it safe to launch to windows with A bios then switch to B bios while power on and update intel me? Dont want to screw A bios now that B bios is not working.*
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2 REPLIES 2

STARRAIN_ROG
Customer Service Agent
Hi Pesari,
Please try USB BIOS FlashBack to update BIOS.
https://www.asus.com/support/FAQ/1038568/
Thank you.

Pesari
Level 7
Thank you that worked and now both bioses are working.