Just check the release notes for new .432 beta for JP SKU.
ASUS ZenFone Max Pro M1 Android 10 AOSP Software Image developer Version for JP SKU only, exclude JP SKU.
Android 10 AOSP developer version is now available. This version is only for WW SKU device
Please ensure to backup data before upgrade.
Improve Items:
1.Updated Android security patch
2.Updated APN
3.Improved headphones have poor sound quality
4.Fixed bass sound disappear
5.Fix dial connect ring tone change as the ringtone of hang up issue