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.

三星 W2019 (SM-W2019)

Build Number : W2019ZCU2CUK1

Android version : Q(Android 10)

Release Date : 2021-12-09

Security patch level : 2021-11-01

• Overall stability of your device has been improved.
• The latest Android security patch has been applied.
- Device security has been further enhanced.

Build Number : W2019ZCU2CUF1

Android version : Q(Android 10)

Release Date : 2021-06-28

Security patch level : 2021-05-01

The exact changes may differ depending on your device model, country/Region, and service provider.

• Enhanced Quick Share
- Improve file sharing between Galaxy devices using Quick Share.
• The latest Android security patch has been applied.
- Device security has been further enhanced.

Build Number : W2019ZCU2CUD1

Android version : Q(Android 10)

Release Date : 2021-04-27

Security patch level : 2021-03-01

The exact changes may differ depending on your device model, country/Region, and service provider.

• Add new apllication - Baidu Netdisk
• The security of your device has been improved.
• Other bug fixes
- WLAN connectivity and stability have been improved.

Build Number : W2019ZCU2CTL2

Android version : Q(Android 10)

Release Date : 2020-12-31

Security patch level : 2020-10-01

• The security of your device has been improved.

Build Number : W2019ZCU2CTG2

Android version : Q(Android 10)

Release Date : 2020-08-03

Security patch level : 2020-06-01

• Other bug fixes
- Improved stability. - Calendar, Phone, Messages, location, Homescreen
• The latest Android security patch has been applied.
- Device security has been further enhanced.

Build Number : W2019ZCU2CTE7

Android version : Q(Android 10)

Release Date : 2020-06-08

Security patch level : 2020-05-01

"One UI 2.1 upgrade with Android 10

One UI 2.1 brings you Android 10, with exciting new features from Samsung and Google based on feedback from users like you.
We recommend that you back up your important data to keep it safe during the upgrade.
Some apps, including Calculator,Samsung Internet, Samsung Connect, Voice Recorder, Ct Client, Samsung Health and Samsung Notes, need to be updated individually after you update your OS,

Here's what's new.

Dark mode
- Enhanced image, text, and color adjustments for day and night environments.
- Darkened wallpapers, widgets, and alarms while Dark mode is on.

Smoother animations
- Enhanced animations with a playful touch.

Better text over wallpapers
- See text more clearly against wallpaper, as One UI 2.1 automatically adjusts font colors based on light and dark areas and color contrast in the image below.

Media and devices
- Replaced the SamsungConnect panel with the Media and Devices.
- Media: Control music and videos playing on your phone as well as other devices.
- Devices: Check and control your SamsungConnect devices directly from the quick panel.

Quick Share
- Files can now be quickly and easily shared with nearby Samsung devices using Quick Share.

Smart Manager
- The battery usage graph now provides more detailed information.

Digital wellbeing
- Set goals to keep your phone usage in check.
- Use Focus mode to help avoid distractions from your phone.

Camera
- Added the ability to edit the modes that appear at the bottom of the screen.
- Provided a More tab so you can quickly access hidden modes from the preview screen.
- Improved the layout so you can focus on taking pictures without the settings getting in the way.

Sticker
- AR Emoji has been changed to Sticker and enhanced facial expression recognition.

Gallery
- Similar images are now grouped together for a more organised viewing experience.
- A feature has been added that allows you to merge multiple different groups of albums into one group, or merge different groups and albums into one group.
- An improved search feature has been added to find pictures based on information such As the time or place pictures were taken.
- The Quick crop function has been added to enlarge and crop parts of high resolution images.

Internet
- Customize the quick menu to get instant access to the features you use the most.
- Get more information from the app bar.
- Install add-ons from the Galaxy Store to get even more features.

Samsung Contacts
- Added Trash feature for Contacts. Contacts that you delete will stay in the trash for 15 days before being deleted forever.

Reminder
- More options are available for repeating reminders.
- Set location-based reminders for a specific period of time.
- Share reminders with your family group and other sharing groups.
- Set reminders for a specific date without an alert.

My Files
- Created a Trash feature so you can restore files if you delete something by mistake.
- Added more filters you can use while searching to help you find things quickly.

Tips
- Added tips to help you get the most from your Galaxy.

Other improvements and changes
- Added new application : Samsung FM
- The UHQ upscaler has been removed from Quick Panel.
- Quick panel Added new feature : Focus mode, Quick Share.

Build Number : W2019ZCU2BSK1

Android version : Pie(Android 9)

Release Date : 2019-12-16

Security patch level : 2019-11-01

- Other bug fixes
ㆍThe stability of Phone function has been improved.
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : W2019ZCU1BSI3

Android version : Pie(Android 9)

Release Date : 2019-10-10

Security patch level : 2019-07-01

- Other bug fixes
ㆍThe stability of Camera has been improved.
ㆍThe stability of Call has been improved.
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : W2019ZCU1BSH6

Android version : Pie(Android 9)

Release Date : 2019-09-02

Security patch level : 2019-07-01

- China Telecom VoLTE Option enabled as default. If your CTC SIM card does not support VoLTE, there can be issue in sending call or message so, please Turn off the VoLTE HD voice after upgrade. (Settings - Connections - Mobile networks)
or recommend contact operator to enable volte.
- Improved performance
ㆍUpdate XinXiTianXia, Samsung music app version
- Other bug fixes
ㆍFix contact app, it can't send call using Hardware key directly
ㆍFix the issue that it can't send urgent call using Hardware key when locks screen
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : W2019ZCU1BSH3

Android version : Pie(Android 9)

Release Date : 2019-08-14

Security patch level : 2019-07-01

"Upgraded One UI for Android Pie

One UI brings you Android Pie, with exciting new features and a whole new look and feel based on feedback from users in Samsung and Google.
We recommend that you back up your important data to keep it safe before the upgrade.
Some apps, including Calculator, Samsung Internet, Samsung Health, Samsung Notes, Samsung Members, and Samsung Pay, need to be updated individually after you update your OS.
To use the "Remote Unlock" function in "Find My Mobile" from the Android Pie OS, the screen lock password (or PIN, pattern) backup process is needed. So please be sure to remember the screen lock password (or PIN, pattern) before starting the update process. If you forget the password (or PIN, pattern), do reset it before starting the update process.

Here’s what’s new.

One UI
- Content, settings, and other information have been reorganized to keep you focused on the task at hand.
- Interactive elements have been moved to the bottom of the screen so they're always within reach.
- New designs and features such as Night mode help keep your eyes comfortable.

Notifications
- You can reply to messages directly in the notification panel.
- Image thumbnails are included in message notifications.
- In an app's notification settings, tap the switch once to turn on or off all the notifications in a category.

Samsung Keyboard
- New Unicode 11.0 emojis are available.
- New adaptive theme changes your keyboard look based on the colors of the surrounding app.
- Floating keyboard is available in all apps and has new size and transparency settings.
- You can set a custom touch and hold delay.

Always On Display
- New clock styles have been added, including the option to show a calendar with your schedule.
- Charging information has been added to let you know how much time is remaining until fully charged.
- You can show Always On Display whenever the screen is off, or you can set it to show for 30 seconds when you tap the screen.

Settings
- Menus have been reorganized to make settings easier to find.

Bixby
- Bixby is all new, with a range of improvements and new features.
- Swipe left from the main Bixby screen to explore the latest features and supported apps.
- You can control the Bixby key in settings to decide what happens when you press or double press.

Phone
- Your call history can include up to 2000 entries (increased from 500 entries).

Contacts
- The new drawer menu makes it easier to manage contacts from various accounts.

Camera
- The new Scene optimizer automatically enhances the camera's color settings to fit the scene.

Gallery
- Photo Editor Pro's editing tools have been added to Gallery, so you can make all your edits and touchups without leaving the app.

My Files
- The new storage analysis tool has been added to help you monitor your storage usage and save space.
- You can now show or hide items on the My Files Home screen.

Samsung Health
- Your daily step count will be shown in the notification panel. To hide it, press and hold the notification, then turn off Current steps.

Other improvements and changes
- Access Kids Home on the quick panel.
- Apps(Share to computer, LED icon editor, WLAN Tips) were added and this app can be deleted
- IP Call function, Open Calendar was removed
-'Cature sceen' and 'Record sceen' was separated in Quick pannel
-WLAN 'Security detect' fucntion was added "

Build Number : W2019ZCU1ASC2

Android version : Oreo(Android 8.1.0)

Release Date : 2019-03-27

Security patch level : 2019-01-01

- Other bug fixes
ㆍThe stability of Call has been improved.
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : W2019ZCU1ARL1

Android version : Oreo(Android 8.1.0)

Release Date : 2019-01-08

Security patch level : 2018-12-01

- Other bug fixes
ㆍThe stability of Camera has been improved.
ㆍThe stability of fingerprint recogniton has been improved.
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : W2019ZCU1ARK2

Android version : Oreo(Android 8.1.0)

Release Date : 2018-11-15

Security patch level : 2018-10-01

- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.