After that, tell your phone under Settings and then Security to encrypt your empty card and make sure to use exactly the same password as before. Lastly, copy all the data from your computer back onto the SD card. It should now be able to read the data, since it understand the encryption, has …

Encrypt Files on Your SD Card Using Your Android Phone Theoretically, every time you access a file from your encrypted SD card, Android goes through the RAM first to retrieve the key and use it to decrypt the file. This is the reason why dealing with encrypted data is relatively slower than accessing unencrypted files. What is an encrypt device and an encrypt SD card on an Mar 11, 2020 What is encryption of SD card means? - Quora

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