Undervolting Help [BIOS 309] [ASUS GU502GU]

[Abn0n]

I have a Asus Zephyrus M GU502GU. My CPU temps in armoury crate have been hitting 95 the moment it goes on turbo (high performance mode) and my laptop has been overheating a lot. I have cleaned the fans and stuff and the problem still persists. And now I realized along with GPU overclock that is missing from my armoury crate (I have posted a seperate thread for help on that issue as well) I am unable to undervolt using XTU. I really would like to undervolt this system as I have heard it does create a difference in CPU temps. I think it is locked in the BIOS 309. Is there a way to go back to a previous BIOS to enable it? I have downloaded the bioz zip file from the support page but I am not sure how to go about it, and if its safe to. Really appreciate any help regarding this!

Intel i7-9750H
32 Gb dual channel Memory
Nvidia GTX 1660Ti 6GB

[Blake@ROG]

Hello Abn0n,
You may downgrade BIOS by EZ flash, the same way you upgrade BIOS.
Thank you.

[albu2108]

Hello Abn0n,
You may downgrade BIOS by EZ flash, the same way you upgrade BIOS.
Thank you.

Hello

Can we do this also for Zephyrus M GU502LV with i7-10750H CPU with BIOS version 309?

BIOS version 307 is unlocked? Can we flash it wit the EZ utility?

Thank you