System-arm64-ab.img.xz Android 12 Review

fastboot -w

GSIs are generic. You may need to navigate to Settings > Phh Treble Settings (built into most Android 12 GSIs) to force-enable VoLTE or adjust your IMS profile settings. system-arm64-ab.img.xz android 12

: This indicates that the file contains the Android operating system's root filesystem (the /system partition). It holds the user interface, system apps, and core framework. fastboot -w GSIs are generic

. These images are pure Android implementations based on the Android Open Source Project (AOSP) code, designed to run on a wide variety of Project Treble-compliant Android Developers it will fail.

This is critical. If you flash an ab image on an a-only device, it will fail.