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 Tab S2 (SM-T715C)

Build Number : T715CZCS2CTK1

Android version : Nougat(Android 7.0)

Release Date : 2020-12-14

Security patch level : 2017-08-01

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

Build Number : T715CZCU2CRA1

Android version : Nougat(Android 7.0)

Release Date : 2018-01-22

-Improved performance
ㆍThe stability of the device is improved.
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.

Build Number : T715CZCU2CQF1

Android version : Nougat(Android 7.0)

Release Date : 2017-06-29

This update includes improvements to functions as listed below.
The exact changes may differ depending on your device model, country, and service provider.

· OS upgrade - Android 7.0 Nougat
· Provides new UX and various performance modes
· Improved usability of the Notification feature and Quick settings button
· Improved usability of the Multi window and setting menu
· Efficient space for installation of downloaded apps, improved speed of system upgrade and app installation
· After upgrade, "Baidu search","Baidu Map","Weibo" will be deleted.
· The latest Android security patch has been applied.
- Device security has been further enhanced.

※ Some apps that haven't been optimised for Android Nougat might not work properly after the upgrade. In this case, upgrade the app to the latest version via Galaxy Apps.
※ The functionality of some features may differ after the upgrade. Some apps may not function normally.
※ Errors during the upgrade may cause data loss. Back up any important data before upgrading.
※ To get the best from your device, please keep your device up to date and regularly check for software updates.
※ The temperature of the device may temporarily increase during the software upgrade or update because of the data download and associated behaviours.

Build Number : T715CZCU2BPL3

Android version : Marshmallow(Android 6.0.1)

Release Date : 2016-12-27

· OS upgrade - Android 6.0 Marshmallow
· The new TouchWiz provides enhanced usability and an updated visual design.
· Quick connect helps you easily find and connect to nearby devices by showing currently connected devices and previous connections.
· Fingerprints are securely protected. An alternative unlock method (pattern, PIN, or password) is required to add fingerprints.
· A new vibration pattern concept has been applied.
※ Android 6.0 Marshmallow does not support the Decrypt device function. If your mobile device is encrypted, encryption cannot be disabled after upgrading. If you want encryption to be disabled after upgrading, it must be disabled before you upgrade your device. To disable encryption go to Settings - Lock screen and security - Other security settings, then select Decrypt device.
※ After upgrade, Samsung Magazine substitute for Samsung Reader. Samsung Reader provide E-book contents additional.
※ Some apps may be incompatible after OS upgraded. please update the apps to the latest version via Galaxy Apps.
※ The Email, Samsung magazine widgets may disappear from the home screen after the OS upgrade. Enable these widgets or associated apps again to continue using them.
※ Smart manager widget lose Battery and Security function. Storage and RAM function will be remained.
※ Smart stay may disappear in quick panel. You can check this on setting menu.
※ bubbles function may disappear in messages settings
※ After Upgrade, Private mode doesn't support Internet browser
(Sbrowser 4.0 version doesn't support private mode)
※ After upgrade, GameBox will be deleted.
※ The temperature of the device may temporarily increase during the software upgrade or update because of the data download and associated behaviours.

Build Number : T715CZCU2APD1

Android version : Lollipop(Android 5.0.2)

Release Date : 2016-08-13

ㆍImproved performance
- The device performance has enhanced with efficient system management
ㆍOther bug fixes
- Overall slow performance of the device while Gallery was open has been resolved.
ㆍApplied the Android regular security patch.
- It will enhance devcie securty more than before.

Build Number : T715CZCU2APA1

Android version : Lollipop(Android 5.0.2)

Release Date : 2016-02-12

- upgrade the Smart manager
- apply the Andriod regular security patch
- Improved performance with efficient memory management
- Optimized closing unused applications

Build Number : T715CZCU2AOJ9

Android version : Lollipop(Android 5.0.2)

Release Date : 2015-11-09

- Increased battery usage time
- Faster execution speed of applications
- Performance improvement by efficient memory management
∙ Closing applications which have not been used automatically
∙ Notifying unstable applications
- Security Enhancements
- apply the Andriod regular security patch

Build Number : T715CZCU1AOH1

Android version : Lollipop(Android 5.0.2)

Release Date : 2015-08-18

- Device stability improvements, bug fixes.
- New and / or enhanced features.
- Further improvements to performance.