Android 12 Public Beta is currently running on some eligible Pixel and non-Pixel Android devices officially before releasing the official stable build for all. Due to the AOSP source code, it’s quite easy for enthusiasts or developers to manually flash the Android 12 beta build on compatible Android devices (Project Treble supported). Luckily, you can easily install the Android 12 Beta Port on your Samsung Galaxy J7 2016 model.
Android 12 and Its Features
Android 12 is all about improved personalization and revamped user interface that changes the way to bring more dynamic expression and a whole new design element. It’s a successor of the last-gen Android 11 which was basically focused on the privacy and security of the user data. While the Android 12 not only focused on privacy features but also on visual treatment.
Talking about the features, it has all new and colorful yet minimal widgets that are now more dynamic than ever before. While the dynamic theme with the wallpapers is more expressive as per your mood. The notification shade, lock screen, and its notifications, glance screen, volume controls, quick shortcut tiles, new power menu, transitions or animations, etc everything looks & feels great whatsoever with ‘Material You’ design.
Meanwhile, the impressive Privacy Dashboard feature, the privacy indicator on the top of the screen is also great. Whereas scrolling screenshot support, improved notifications, and quick reply feature, on-device search feature, easy Wi-Fi sharing, one-handed mode, quick back tap feature, haptic-coupled audio effect, Android 12 updates via Google Play, App hibernation, all-new emojis, improved auto-rotate, and a lot more.

It say inside eror and it is not show phone sitting including phone content