A software update can include, but is not limited to
To get the best from your device, please keep your device up to date and regularly check for software updates.

Galaxy J4 (SM-J400F)

Build Number : J400FXXS9CVF2

Android version : Q(Android 10)

Release Date : 2022-06-28

Security patch level : 2022-02-01

• The security of your device has been improved.

Build Number : J400FXXU9CVC2

Android version : Q(Android 10)

Release Date : 2022-05-17

Security patch level : 2021-09-01

• The security of your device has been improved.

Build Number : J400FXXU8CUG1

Android version : Q(Android 10)

Release Date : 2021-08-13

Security patch level : 2021-04-01

• Added new feature. - Google RCS(Rich Communication Service)
• Added new application : Josh
• The security of your device has been improved.

Build Number : J400FXXS8CUD6

Android version : Q(Android 10)

Release Date : 2021-05-24

Security patch level : 2021-04-01

• The security of your device has been improved.

Build Number : J400FXXU7CTL4

Android version : Q(Android 10)

Release Date : 2020-12-24

Security patch level : 2020-11-01

• The security of your device has been improved.

Build Number : J400FXXS7CTI4

Android version : Q(Android 10)

Release Date : 2020-10-06

Security patch level : 2020-09-01

• The security of your device has been improved.

Build Number : J400FXXU6CTH1

Android version : Q(Android 10)

Release Date : 2020-09-09

Security patch level : 2020-07-01

One UI 2 upgrade with Android 10

One UI 2 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 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.

Icons and colors
- Clearer app icons and system colors.
- Improved layouts for titles and buttons to eliminate wasted screen space.

Smoother animations
- Enhanced animations with a playful touch.

Refined interactions
- Navigate more comfortably on large screens with minimal finger movement.
- Easily focus on what matters with clearly highlighted buttons.

One-handed mode
- New ways to access One-handed mode: double tap the Home button or swipe down in the center of the bottom of the screen.
- Settings moved to Settings > Advanced features > One-handed mode.

Accessibility
- High contrast keyboards and layouts for large text have been improved.
- Listen to live speech and display it as text.

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

Media and devices
- Replaced the SmartThings 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 SmartThings devices directly from the quick panel.

Device care
- 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.
- Keep an eye on your kids with new parental controls.

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.

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.

Calendar
- Stickers can be added to a date without creating an event.
- Ringtones can be used for event alerts.

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.
- You can now copy or move multiple files and folders to different destinations at the same time.

Calculator
- Added speed and time units to the unit converter.

Connected car
- Android Auto is now preloaded.

Build Number : J400FXXS6BTF7

Android version : Pie(Android 9)

Release Date : 2020-06-26

Security patch level : 2020-06-01

· The security of your device has been improved.

Build Number : J400FXXS5BTC2

Android version : Pie(Android 9)

Release Date : 2020-04-08

Security patch level : 2020-03-01

· The security of your device has been improved.

Build Number : J400FXXU4BSK1

Android version : Pie(Android 9)

Release Date : 2019-11-26

Security patch level : 2019-11-01

· The security of your device has been improved.

Build Number : J400FXXS4BSJ5

Android version : Pie(Android 9)

Release Date : 2019-11-05

Security patch level : 2019-10-01

· The security of your device has been improved.

Build Number : J400FXXU4BSG1

Android version : Pie(Android 9)

Release Date : 2019-07-23

Security patch level : 2019-07-01

· The security of your device has been improved.

Build Number : J400FXXU4BSF5

Android version : Pie(Android 9)

Release Date : 2019-07-04

Security patch level : 2019-07-01

· Improved stability. - GPS
· The security of your device has been improved.

Build Number : J400FXXU3BSDE

Android version : Pie(Android 9)

Release Date : 2019-04-30

Security patch level : 2019-04-01

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, and Samsung Members, need to be updated individually after you update your OS.
To use the Remote unlock function in Find My Mobile on an Android Pie device, the screen lock password (or PIN/pattern) backup process is required. So please make sure that you remember the screen lock password (or PIN/pattern) before starting the update process. If you've forgotten the password (or PIN/pattern), 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.

Settings
- Menus have been reorganized to make settings easier to find.
- Added new feature. - Night mode, Font size and style - Bold font

Phone
- You can now sort your call history by incoming and outgoing calls.
- 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.

Gallery
- Recycle bin feature was added to Gallery, so you can restore deleted photos using the Recycle bin.
- You can quickly access a range of content, such as "Videos", "Places", "Favourites", and "Suggested" by swiping down in the Pictures or Albums tabs.

Build Number : J400FXXU2ASA2