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.

SM-R390

Build Number : R390XXU0AZA3

Android version : RTOS 1.0

Release Date : 2026-03-05

• Stability and reliability
Device behavior has been improved.

These changes may vary depending on the model, country, or network operator of the customer environment.

Build Number : R390XXU0AYB3

Android version : RTOS 1.0

Release Date : 2025-04-14

• Stability and reliability
The stability has been improved.

Build Number : R390XXU0AYB2

Android version : RTOS 1.0

Release Date : 2025-03-17

• Stability and reliability
The stability has been improved.

Build Number : R390XXU0AXHD

Android version : RTOS 1.0

Release Date : 2024-09-09

• Added new tile
A battery tile is added to check the battery status of the device which is connected to the terminal.
※ This feature is only supported on Galaxy S23 and later models with One UI 5.1 or later, and is subject to Samsung policies.
• Added a feature to display music lists
A feature to display and play up to 20 music lists on the display has been added.
• Samsung Health
The daily activity target setting has been refined.
• Notification
The user is notified with a vibration when the battery is low.
In Do Not Disturb mode, a vibration will notify you of incoming calls from allowed contacts.
• Stability and reliability
The stability has been improved.

Build Number : R390XXU0AXG2

Android version : RTOS 1.0

Release Date : 2024-07-15

• Stability and reliability
. Applied stabilization code for Bluetooth connectivity, notifications and system.
. Applied stabilization code for Samsung Health, including synchronization of steps and exercise time.

Build Number : R390XXU0AXE1

Android version : RTOS 1.0

Release Date : 2024-05-23

• Notification
The usability of Notifications operations has been improved.
• Stability and reliability
The stability has been improved.