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Use this page to identify software versions for the Sony Xperia Z1s as well as details on recent software updates.

 

 

 

Identify the device's current software version

 

Android 5.0.2

  1. From any Home screen, tap Apps > Settings > About phone.
  2. Read the version on the phone, and check it below:
  3. Review the information in the Review software version details section below.

 

 

Review software version details

 

VERSION RELEASE DATE ENHANCEMENTS STATUS

Android version 5.0.2

Baseband Version: 14.5.B.0.247 

September 28, 2015

Messaging security improvements

Available September 28, 2015

If customers' devices meet the update requirements below, they can upgrade to the most current software version.

Android version 5.0.2

Baseband Version: 14.5.B.0.236

May 27, 2015

Android 5.0 Lollipop

Group messaging support

Available May 27, 2015

If customers' devices meet the update requirements below, they can upgrade to the most current software version.

Android version 4.4.4

Baseband Version: 14.5.B.0.236

November 10, 2014

Wi-Fi Calling enhancements

Camera enhancements

Bluetooth enhancements

Software stability improvements

Available November 10, 2014

If customers' devices meet the update requirements below, they can upgrade to the most current software version.

Android version 4.4.4

Baseband Version: 14.4.B.0.37

August 4, 2014

Update to Android 4.4.4 KitKat

New user interface experience

New Movie creator application

New Portrait retouch application

Available August 4, 2014

If customers' devices meet the update requirements below, they can upgrade to the most current software version.

Android version 4.4.4

Baseband Version: 14.4.B.0.37

January 22, 2014

Water and dust resistant

Tempered glass with a solid aluminium frame

View razor-sharp images on the TRILUMINOS™ display

20.7 MP Exmor RS™ sensor, G Lens Camera

Available January 22, 2014

If customers' devices meet the update requirements below, they can upgrade to the most current software version.

Other versions    

Your phone has non-T-Mobile software, and it is unsupported. The manufacturer and T-Mobile cannot update your software.

 

Determine update requirements

Customers' devices must meet the following requirements to update their software to the most current version:

  • Wi-Fi or cellular data connection
  • 50% or higher battery life
  • Available memory (File size is 8308 KB)

 

 

Update software versions

 

Update automatically over the air (OTA) for Android 5.0.2/14.5.B.0.247

  1. From the Home screen, tap the All apps key.
  2. Tap Settings > About phone.
  3. Tap Software update.

 

Update from a computer

  1. Install the PC Companion application on the computer you are using, if it is not already installed.
  2. Connect your device to the computer using a USB cable.
  3. Computer: Launch the PC Companion application. After a few moments, PC Companion detects your device and searches for new software for it.
  4. Device: When notifications appear in the status bar, follow the on-screen instructions to carry out the relevant software updates.

 

 

Issues after updating

If you experience issues after updating to the latest software version, perform a master reset.

  1. Back up data on the internal memory.
  2. From any Home screen, tap Apps Settings > Back up & reset.
  3. Clear the Automatic restore check box.
  4. Under PERSONAL DATA, tap Factory data reset > Reset phone.
  5. If you have screen lock turned on, enter your PIN or password, and then tap Continue.
  6. Tap Erase everything to confirm.

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