•Close down running applications that you are not using.
•Clear the cache memory for all applications.
•Uninstall downloaded applications that you don't use.
•Transfer photos, videos and music from the internal memory to the memory card.
•If your device can't read content on the memory card, you may need to format it.
To view the memory status
1 From your Home screen, tap .
2Find and tap Settings > Storage.
To view the amount of free and used RAM
1 From your Home screen, tap .
2Find and tap Settings > Apps > Running.
To clear the cache memory for all applications
1 From your Home screen, tap .
2Find and tap Settings > Storage.
3 Tap Cached data > OK.
When you clear the cache memory, you don't lose any important information or settings.
To transfer media files to the memory card
1Make sure you have a memory card inserted in your device.
2 From your Home screen, tap .
3Find and tap Settings > Storage > Transfer data to SD card.
4Mark the file types that you want to transfer to the memory card.
5 Tap Transfer.
To stop applications and services from running
1 From your Home screen, tap .
2Find and tap Settings > Apps > Running.
3Select an application or service, then tap Stop.
To format the memory card
1 From your Home screen, tap .
2Find and tap Settings > Storage > Erase SD card.
3 To confirm, tap Erase SD card > Erase everything
All content on the memory card gets erased when you format it. Make sure you make backups of all data that you want to save before formatting the memory card. To back up your content, you can copy it to a computer. For more information, see Managing files using a computer on page 112.
Managing files using a computer
Use a USB cable connection between a Windows® computer and your device to transfer and manage your files. Once the two devices are connected, you can drag and drop content between your device and the computer, or between your device's internal storage and SD card, using the computer's file explorer.
If you have an Apple® Mac® computer, you can use the Sony Bridge for Mac application to access the file system of your device. You can download Sony Bridge for Mac from
Transferring files using Media transfer mode via Wi-Fi®
You can transfer files between your device and other MTP compatible devices, such
as a computer, using a
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