memory card or internal storage. You can also be notified by alarms, if alarms are activated.
Turning on Airplane mode reduces battery consumption.
To turn on Airplane mode
1From your Home screen, tap the Application screen icon.
2Find and tap Settings > More….
3Mark the Airplane mode checkbox.
You can also press and hold down the power key 
and then select Airplane mode in the menu that opens.
Memory
You can save content to your device's internal storage and to a memory card.
To view the status of your memory
1From your Home screen, tap the Application screen icon.
2Find and tap Settings > Storage to view the status of your memory.
Memory card
Your device supports a microSD™ memory card, which is used for storing content. This type of card can also be used as a portable memory card with other compatible devices.
You may have to purchase a memory card separately.
Formatting the memory card
You can format the memory card in your device, for example, to free up memory. This means that you erase all data on the card.
All content on the memory card will be lost. Make sure you have made backups of everything you want to save before formatting the memory card. To backup your content you can copy it to your computer.
To format the memory card
1Drag the status bar downwards, then tap 
.
2Find and tap Storage > Erase SD card.
3To confirm, tap Erase SD card > Erase everything
Clearing the application memory
You may sometimes need to clear the memory for an application. This might happen if, for example, the application memory becomes full, or you want to clear scores for a game. You might also want to delete incoming email, text and multimedia messages in some applications.
To clear the memory for an application
1Drag the status bar downwards, then tap 
.
2Find and tap Apps.
3Tap the application for which you want to clear the memory.
4Tap Clear cache.
It is not possible to clear the memory for some applications.
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