Samsung Galaxy Watch Active2 44mm R820XXU1FWK2 Firmware
Samsung Galaxy Watch Active2 44mm R820XXU1FWK2 is an Tizen 5.5.0.2 firmware for 74 countries, 82 CSC codes. It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. Compared with the previous build R820XXU1FVH4, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. This is the newest build for SM-R820.
Bootloader binary 1. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.
All regional downloads
Pick your region (CSC) to download the matching firmware package.
No matching downloads
Device specifications
- Display diagonal3.43 cm (1.35")
- Display technologyOLED
- Display resolution360 x 360 pixels
- Processor frequency1150 MHz
- RAM750 MB
- Flash memory4 GB
- Battery capacity340 mAh
- Weight30 g
- Band materialFluoroelastomer
- Band colourBlack
What's new in R820XXU1FWK2
• Watch faces
2 new types of new Watch faces.
(Stretched Time, Perpetual)
• Stability and reliability
The stability for sensors has been improved.
How to flash R820XXU1FWK2
- Install Samsung USB Drivers:Download Official Drivers
- Download Odin Flash Tool:
- R820XXU1FWK2 has bootloader binary 1. Your device must run binary 1 or lower: it is the 5th character from the end of your current build number.
- CSC: Use CSC for a clean install, to change the region (CSC code), to downgrade or to repair a device that does not boot.
- HOME_CSC: Use HOME_CSC to update the same model and region while keeping your data. Back up anyway: a failed update can still require a reset.
- The Download Mode key combo depends on the model: see all combos.
Frequently Asked Questions
Other builds and changelog for Samsung Galaxy Watch Active2 44mm
• Watch faces
2 new types of new Watch faces.
(Stretched Time, Perpetual)
• Stability and reliability
The stability for sensors has been improved.
• Watch Face
Enjoy new and improved watch faces with enriched style and customizable options.
- Two new Watch Faces have been added.
(Pro analog, Gradient number)
• Samsung Health
- Through the updated 'Daily Activity Indicator', Mobile Health data is synchronized to improve convenience.
- Provides a recording function when snoring is detected, using your mobile phone while you sleep.
• Watch faces
- Support the new Watchfaces
• Exercise
- Support Group Challenge Widget in watch
- Provide more accurate calorie consumption levels based on HR (Except swimming)
• Detect falls
- More falls will be detected, but other activity may also be detected as falls.
• Calendar
- Increase the calendar synchronization period from 3 months to 1 year
Show 15 older builds
• Enhanced the auto walking/running icons
• Enhanced the 'Inactive Alert' icon
• Improved device stability
• Improved Messaging App stability
• Improved WiFi stability
• Improved system stability and reliability
• Improved Samsung Health Function
- You can now enjoy a group-walking challenge with your friends
- Additional sleep score insight provided
- Reduced auto workout recognition time (running, rowing machine, elliptical)
- Enjoy home workout with a variety of fitness programs
• SmartThings Find
- You can find the location of the watch on the map.
• Hand Wash
- After downloading the Hand Wash app, your watch can automatically detect and time, when you start washing your hands
• Improved syste...
• Improved Samsung Health Function
- You can now enjoy a group-walking challenge with your friends.
- Additional sleep score insight provided.
- Reduced auto workout recognition time (running, rowing machine, elliptical).
- Enjoy home workout with a variety of fitness programs.
• SmartThings Find
- You can find the location of the watch on the map.
• Hand Wash
- After downloading the Hand Wash app, your watch can automatically detect and time, when you start washing your hands.
• Improved...
• If exercising with a watch, the voice guide is provided via a headset connected to the mobile device.
• Add a voice guidance about cumulative data and heart rate to the Auto Lap of Running/Cycling.
• UX update (A second hand will not be shown on AOD screen.)
• Improved system stability and reliability
- Advanced Running Analysis : Giving you the insights you need to improve your running form.
- VO2max : Check the maximum amount of oxygen you utilize during exercise to improve your endurance.
- Detect falls : Watch can send out SOS call and messages to emergency contact when a hard fall is detected.
- Enhanced Notification : Upon receiving a message notification, a chat window appears and can also view images.
- AR Emoji/Bitmoji : Send AR Emoji and Bitmoji through the watch.
- Capture : Suppor...
- Advanced Running Analysis : Giving you the insights you need to improve your running form.
- VO2max : Check the maximum amount of oxygen you utilize during exercise to improve your endurance.
- Detect falls : Watch can send out SOS call and messages to emergency contact when a hard fall is detected.
- Enhanced Notification : Upon receiving a message notification, a chat window appears and can also view images.
- AR Emoji/Bitmoji : Send AR Emoji and Bitmoji through the watch.
- Capture : Suppor...
• Bug fix for random disabling of Always On Mode.
• Improved accuracy of calorie measurement based on heart rate sensor.
• Improved stability for Bixby features.