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 Buds2 (SM-R177)

Build Number : R177XXU0AYF1

Android version : RTOS 1.0

Release Date : 2025-07-24

• Stability and reliability
The stability has been improved.

Build Number : R177XXU0AYA1

Android version : RTOS 1.0

Release Date : 2025-03-11

• Stability and reliability
The stability has been improved.

Build Number : R177XXU0AXB1

Android version : RTOS 1.0

Release Date : 2024-03-06

• Stability and reliability
Stabilization codes related to battery charging and device operation have been applied.

Build Number : R177XXU0AXA4

Android version : RTOS 1.0

Release Date : 2024-02-05

• Stability and reliability
The stability has been improved.

Build Number : R177XXU0AWB1

Android version : RTOS 1.0

Release Date : 2023-02-23

• Stability and reliability
The stability has been improved.

Build Number : R177XXU0AVK5

Android version : RTOS 1.0

Release Date : 2022-12-05

• Stability and reliability
Device behavior has been improved.

Build Number : R177XXU0AVH1

Android version : RTOS 1.0

Release Date : 2022-08-29

• Stability and reliability
The stability has been improved.

Build Number : R177XXU0AVF1

Android version : RTOS 1.0

Release Date : 2022-07-04

• Improved system stability and reliability
Overall stability of your device has been improved.

Build Number : R177XXU0AVE1

Android version : RTOS 1.0

Release Date : 2022-06-07

• Improved system stability and reliability
Overall stability of your device has been improved.

Build Number : R177XXU0AVC8

Android version : RTOS 1.0

Release Date : 2022-04-04

• The 360 audio feature has been added.
※This feature is available on Galaxy smartphones and tablets with One UI 3.1 or higher.
• Call stability has been improved.
• Bluetooth connectivity and stability has been improved

Build Number : R177XXU0AVC1

Android version : RTOS 1.0

Release Date : 2022-03-16

• Improved system stability and reliability

Build Number : R177XXU0AUL2

Android version : RTOS 1.0

Release Date : 2021-12-16

• Call Feature added for In-ear detection.
• Call control option added in Touch control.
• Improved system stability and reliability

Build Number : R177XXU0AUI9

Android version : RTOS 1.0

Release Date : 2021-10-18

• Improved system stability and reliability

Build Number : R177XXU0AUI5

Android version : RTOS 1.0

Release Date : 2021-10-05

• Improved system stability and reliability

Build Number : R177XXU0AUI2

Android version : RTOS 1.0

Release Date : 2021-09-08

• Improved system stability and reliability

Build Number : R177XXU0AUH2

Android version : RTOS 1.0

Release Date : 2021-08-24

• New features
- “Ambient sound” available during voice call.
• Added a “Noise controls” feature.
- Added a “Noise controls with one earbud” feature.
- Added a “Customize ambient sound” feature.
• New function added in 'Labs'.
- Double tap earbud edge
• Improved system stability and reliability