This update includes improvements to functions as listed below.
The exact changes may differ depending on your device model, country, and service provider.
To get the best from your device, please keep your device up to date and regularly check for software updates.

Galaxy S21 5G(SM-G991B)

Build Number : G991BXXU3AUDA

Android version : R(Android 11)

Release Date : 2021-05-07

Security patch level : 2021-05-01

• The performance of Camera has been improved
• Enhanced Quick Share
- Improve file sharing between Galaxy devices using Quick Share.
• The security of your device has been improved.

Build Number : G991BXXU2AUC8

Android version : R(Android 11)

Release Date : 2021-03-30

Security patch level : 2021-04-01

• The performance of Camera has been improved
• Overall device performance has been improved.

Build Number : G991BXXU1AUB8

Android version : R(Android 11)

Release Date : 2021-02-17

Security patch level : 2021-02-01

• The performance of Camera has been improved
• Overall device performance has been improved.

Build Number : G991BXXU1AUB3

Android version : R(Android 11)

Release Date : 2021-02-09

Security patch level : 2021-02-01

• The performance of Camera has been improved
• Overall device performance has been improved.

Build Number : G991BXXU1AUAB

Android version : R(Android 11)

Release Date : 2021-01-27

Security patch level : 2021-01-01

• The performance of Camera has been improved
• Overall device performance has been improved.

Build Number : G991BXXU1AUA4

Android version : R(Android 11)

Release Date : 2021-01-11

Security patch level : 2021-01-01

• The performance of Camera has been improved
• Wi-Fi connectivity and stability have been improved.
• The performance of Fingerprint recognition has been improved.
• Overall stability of functions improved.
• The security of your device has been improved.