Zenfone 9 downgrade from Android 14 to Android 13

[M1K3L4]

My boyfriend have some issues after newest Zenfone 9 update to Android 14 and he really hates new audio control panel even with Asus's optimatisation. He would really like to go back to the last Android 13 version, so I found a few ways to downgrade, but is there any way to this without factory reset?

[JChris]

Have you found anything?

[Gabrieltg]

I have tried to do it by all means. It is impossible. Thank you Asus!!!!

I'm thinking about buying the Z10 that comes with Android 13 and not updating it.