Subject:  Not supported features with Android R compared with previous Android OS version

Not possible - sharing files using Wi-Fi Direct:

Can be replaced by the sharing functions of following features, Nearby Share, Quick Share, and Bluetooth.

Nearby Share : Convenient sharing experience among Android devices (https://support.google.com/android/answer/9286773)

Simple and easy file/photo/video sharing among Android devices thorough Wi-Fi Direct / Wi-Fi Aware and etc.

• If you cannot find Nearby Share icon in quick panel, go to Settings > Google > Device connections > Nearby Share
• If the incoming alarm does not sound, please enable Nearby Share feature, Setting> Google> Device connections> Nearby Share on the receiving terminal.
• If you want to transfer data with android device running Android 6 or previous OS, please use Bluetooth or data cable .

Quick Share : A new sharing service for sending photos, videos, and files with your friends and family.

You can instantly send to multiple people at a time via Quick Share on Galaxy S20, S20+, and S20 Ultra.

And Quick Share is available on previous Galaxy series when upgraded to Android 10.

Not supported - Android Beam:  

• Deleted the Android Beam function, which is a web page link and file transfer function using NFC.
• This feature can be replaced by Bluetooth function.

Not transferring music files to Gear IconX(SM-R140):  

• Cannot transfer files using Galaxy Wearable app or USB connector from a connected mobile phone installed Android R OS to Gear IconX anymore.
• To transfer music files stored PC to Gear IconX, please use PC manager program using USB cable.

Cannot access external storage memory such as micro SD card when user changed:

• External memory data is provided to the user only who physically mounted external memory.
• If selected user ID among registered multi-users is not matched to the user who physically mounted external memory into device, the user is blocked to access external memory.
• Ex) Multi-User related service : Tablet-Multi user, Dual Messenger, Knox Workspace

Not supported - Chromecast device using Smart View feature:

• Due to stability and compatibility of Google Chromecast on Android 11, Chromecast connection using Smart View is not supported anymore on Android 11(R OS).
• But if user downloads and use 3rd party app supporting Chromecast such as Google Home, he/she can continuously use Chromecast for streaming contents from your smartphone installed Android 11 onto external screen, TV or monitor.

Not supported - Instagram mode on preinstalled Camera app:

Due to contract termination of Instagram API(Application Programming Interface) with Facebook Inc., related features including Instagram mode on Camera and Instagram shortcut icon on Gallery is not supported on Android 11.