Huawei P20 lite User Manual page 101

Instructions
Protect Your Privacy with microSD Card Encryption
Worried that others might see your photos and other personal data if you lend them your microSD
card? You can encrypt the files stored in your microSD card so that other people who use the card
cannot access your personal data. Encrypted files can only be viewed and used on your device. Other
people can use the microSD card's storage space, but cannot view the content of the encrypted files.
Do not remove your microSD card during the encryption or decryption process, as this may result
in encryption or decryption failure, or data loss.
Open Settings. To encrypt your files, go to Security & privacy > More, then touch Set SD card
password and follow the onscreen instructions to complete the encryption process.
To decrypt your files, touch Clear SD card password and follow the onscreen instructions to
complete the decryption process.
Security and Privacy
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