3 Methods to Fix “Encryption Unsuccessful” Error on Android

Have you encountered “Encryption unsuccessful” error on Android? If Yes, do not panic. Be patient and read out this complete article to find out the ways to deal with this error.

This detailed guide will help you to better understand the error and its causes along with providing you a handful of fixes to resolve it. So, continue reading further…

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What is “Encryption Unsuccessful” Error?

The “Encryption Unsuccessful” error appears on Android phones during the device’s boot-up process. It indicates either the device is not been encrypted properly or the data partition got corrupted.

As a result, the device may not boot up properly, hindering the user from accessing their data or using the device.

Factors Responsible for Encryption Unsuccessful Error Message

Encryption unsuccessful error on Android error can have several underlying causes. Some of the common causes include:

  • Interrupted encryption process: If the encryption process is interrupted due to any reason such as firmware update, improper shutdown, or sudden power loss, it can lead to such an error.
  • Corrupted data partition: Corrupt data partition can prevent the device from decrypting and accessing the encrypted data, resulting in this error message.
  • Software issues: Software bugs, glitches, or compatibility problems can cause encryption-related errors.
  • Rooting or custom ROMs: Sometimes, encryption error may occur due to modification in the device’s firmware by rooting it or installing custom ROMs.
  • Incompatible encryption algorithms: Incompatibility of device encryption algorithms with the current software version can lead to encryption failures.

How To Fix “Encryption Unsuccessful” Error on Android?

Method 1: Wipe Cache Partition in Recovery Mode

Clearing the cache partition is a troubleshooting step that can help resolve various software-related issues on Android devices, including the “Encryption Unsuccessful” error.

Here are the steps to do so:

  • Turn off your Android device.
  • Hold the Power + Volume Down + Home buttons together to enter the Recovery Mode.
  • Once you entered Recovery mode, you will see a menu with several options.
  • Now, with the help of the Volume buttons navigate to the Wipe Cache Partition and press the Power button to select it.

When you get encryption unsuccessful screen error messages, click on “Reset Phone”. You will see the screen as the images shown below, you will see that your device data is getting wiping. Once, the wiping data process complete, your phone will restart after few minutes. Just wait for your phone to get restart. Finally, after your phone restart you have to just setup your Android device as you set up your new phone.

  • Confirm your selection if prompted.
  • The device will now start clearing the cache partition. This process may take a few moments.
  • Once the cache partition is cleared, you will be taken back to the main recovery menu.
  • Select the Reboot System Now option to restart your device.

Additional Reading: How To Fix Bootloop Issue Android?

Method 2: Fixing Encryption Unsuccessful Error by Flashing a New ROM

This is another very effective way to fix the encryption unsuccessful error problem. Though it sounds a little complicated, changing the ROM is very simple. Just follow the steps mentioned below:

  • Unlock the bootloader on your Android device after referring to your phone’s rooting guide and choosing custom recovery.

  • After unlocking the bootloader, download a new ROM for your phone.

  • Next, in order to use your new ROM, you have to restart your phone in recovery mode and then select “Install” and look for the ROM zip file that you have downloaded. This will take a few minutes. Just wait patiently and also make sure to delete all cache and data.

  • Once, the above process is complete, check whether your new ROM is detected by your Android phone or not.

In order to check:

  • Open “Settings” and select “Storage”.

  • If your new ROM display as “USB Storage”, then it is confirmed that you have successfully installed it.

Method 3: Perform a Factory Reset on Your Device

If the above steps didn’t work, you may need to perform a factory reset. However, note that this will erase all data on your device, so it’s important to backup Android data before factory reset.

Now, follow the steps to follow to factory reset your device:

  • When you get an encryption unsuccessful screen error message, click on “Reset Phone”.

encryption unsuccessful

  • Wait until your device wipes the cache and data.

  • Once, the wiping data process is complete, your phone will restart after a few minutes. Just wait for your phone to get restart.
  • Finally, after your phone restarts you have to just set up your Android device as you set up your new phone.

Also Read: Recover Android Data After Factory Reset

Is It Worth Encrypting Your Device?

Yes, encrypting your Android device is generally worth it for several reasons:

  • Data protection: Encryption provides an extra layer of security to your personal data. So, even if your device is stolen, lost, or accessed by any third person, the data remains encrypted and inaccessible without the decryption key.
  • Privacy and confidentiality: It safeguards your privacy by securing sensitive information, such as personal videos, photos, documents, messages, and app data. It prevents unauthorized persons from accessing your personal data.
  • Compliance and legal requirements: In some cases, device encryption is necessary to comply with regulatory or legal requirements, especially when you handle sensitive data in industries like finance, government, or health care.

FAQs (Frequently Asked Questions)

What is Encryption on Android?

Encryption on Android is a security feature that protects the data stored on your device by converting it into an unreadable format. It protects your data and maintains your privacy.

Is it possible to recover encrypted data?

If the encryption key becomes inaccessible or corrupted, recovering the encrypted data may be challenging or impossible.

How to remove encryption from Android phone?

To remove encryption on your Android device, follow the below steps:

  • Open your phone’s Settings.
  • Head to the Security or Lock Screen & Security.
  • Then, choose the Encryption option.
  • Lastly, follow the on-screen instructions to decrypt your device.


So, this is all about the “Encryption unsuccessful” error. However, if none of the above solutions resolve the error, it may indicate a more serious hardware or firmware issue.

In such cases, contacting the device manufacturer’s support or visiting an authorized service center for assistance is recommended.

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