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Android format SD card - how to

  • Nov 12, 2025
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To format the SD card of your Android smartphone is always advisable, if you want to sell the device. Here you should be careful not to delete the external memory, so that data can be restored later. We will show you how you exactly need to do.

Format SD card on Android: how to delete the SD and Mini-SD properly

The SD card of your Android smartphone is quickly formatted without a PC and Adapter. Android already has a corresponding function:
  1. First, open the "settings"App on your Android Smartphone.
  2. Swipe down or change up the category and search for the item "memory" or "SD card and phone storage".
  3. Tap on the Button "erase memory" will delete all data on the SD card.
  4. Note: if using the SD card currently, you can use for the time being, the Option "SD card unmount".
SD-card: delete memory

The data on the SD-card safe to delete

You want to sell your Smartphone, you should the SD not mitverkaufen card: If you format the card only, you can restore the deleted data in the rule. You want to mitverkaufen the SD-card, nevertheless, you should ensure that no one can see your photos or data. For this purpose there are special Tools. Hereby files will be deleted and the SD card is repeatedly overwritten with random files.
  • Programmes such as Sure delete, WipeDisk and WipeFile overwrite the data in the SD card with zeros.
  • With CCleaner you can delete SD-cards and other data carriers sure. How the CCleaner works, read in this Direction.
  • In the Google Play Store, you will find the Android Apps, Full Wipe , and Secure Wipe. In order to delete the SD card directly on your Smartphone.

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