Use this page to identify software versions for the Sony Xperia Z1s as well as details on recent software updates.
On this page:
Identify the device's current software version
Android 5.0.2
- From any Home screen, tap Apps > Settings > About phone.
- Read the version on the phone, and check it below:
- 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
- From the Home screen, tap the All apps key.
- Tap Settings > About phone.
- Tap Software update.
Update from a computer
- Install the PC Companion application on the computer you are using, if it is not already installed.
- Connect your device to the computer using a USB cable.
- Computer: Launch the PC Companion application. After a few moments, PC Companion detects your device and searches for new software for it.
- 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, follow these steps:
- Backup your contacts and media.
- Perform a master reset.