0

We can remove data permanently from android flash memory, which is encrypted, after a factory reset.

After doing this, do we need to decrypt the device for using it again or factory reset the device?

  • I edited the question to make it clear. If my interpretation of your question is wrong, my apologies and please correct it using edit button – beeshyams Mar 30 '17 at 10:16
0

It is in the default factory reset state ( like a new device ). You can't decrypt the device even if you wish to as the encryption password (generated from a combination of user lock screen PIN and encryption algorithm ) is lost

From Android's Factory Reset Does Not Wipe Your Data: Here's The Solution

Encrypting does not completely delete the files, but the factory reset process gets rid of the encryption key. As a result, the device has no way it can decrypt the files and, therefore, makes data recovery extremely difficult.

  • No i don't want to use as encryption device i want to clean data permanently from device.So i have read the solution that if i make encryption in my device and after encryption do the factory reset my device will go to its default setting is it true?After doing this can i sale my device with privacy trust? – sad Mar 31 '17 at 2:20
  • Yes. You are right. 1. The device will be in factory reset state like when you bought the device and took it out of the box 2. No one can access your files since encryption key is not available 3. Your privacy is secure. If the answer, meets your expectations please tick the green arrow next to answer ( since you don't have reputation to upvote) . There is no obligation - ticking it means that the answer is accepted – beeshyams Mar 31 '17 at 3:05
0

When the device is encrypted, the decryption key is only known by the current OS.

If you know the pin (for that screen you get before the animation starts), the device can be decrypted and get booted up successfully.

If you don't remember that, then you will need to reset the device. This resetting is similar to a factory reset.

Factory reset will not retain your personal data and apps in the internal storage.

Your external (micro) SD card, if present, can be removed before doing the reset only if it is configured as a portable storage in Android.

protected by Community Jul 8 at 11:27

Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).

Would you like to answer one of these unanswered questions instead?

Not the answer you're looking for? Browse other questions tagged or ask your own question.