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I have a Xiaomi Redmi Note 2 running MIUI 7.1.2.0 (latest OTA update, based on Android 5). I encrypted it. Then I restored to factory settings, first from the Android menu then from the recovery menu (volume up + power). The phone still reports itself as encrypted in the privacy settings. In the same menu there is no option to either decrypt or encrypt the device. I can set a lock screen PIN and the phone will prompt for it during the boot sequence. I can also disable any lock screen protection and no questions are asked at boot time.

How can I tell for sure if my phone is encrypted or not? If it is not encrypted, how can I encrypt it please? If only answering the first question please try to give an answer that I can verify experimentally rather than one which relies on me trusting your expertise. I am not afraid of getting my hands dirty.

  • I don't have an encrypted Android but there are few pointers that you may be able to use to ascertain the state of encryption in your device. Start from here: source.android.com/security/encryption/… As an example, you can try adb shell getprop ro.crypto.state. It gives me unencrypted. Per the link I surmise that your Android (per specification from CDD) is designed to encrypt /data with no password at first boot after factory reset. – Firelord Jan 22 '16 at 11:53

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