Memory card encryption

You can encrypt and protect data saved on the memory card. The encrypted data in the memory card cannot be accessed from another device.

Tap Home > Settings > Lock screen & security > Encryption & credentials > Encrypt SD card.
Read the on-screen overview of memory card encryption and then tap CONTINUE to continue.
Select an option and tap ENCRYPT NOW.

New data encryption: Encrypt only data that is saved on the memory card after encryption.
Full encryption: Encrypt all the data currently saved on the memory card.
Exclude media files: Encrypt all files, except for media files such as music, photos and videos.

NOTES

Once memory card encryption starts, some functions are not available.
If the device is turned off while encryption is underway, the encryption process will fail, and some data may be damaged. Therefore, be sure to check if the battery level is sufficient before starting encryption.
Encrypted files are accessible only from the device where the files were encrypted.
The encrypted memory card cannot be used on another device. To use the encrypted memory card on another mobile device, format the card.
You can activate memory card encryption even when no memory card is installed into the device. Any memory card that is installed after encryption will automatically be encrypted.