How to erase data from Android phone completely?

[Emily185]

Hello, i need to completely erase all content on my Android ringtone phone, I heard that the deleted data can be easily recovered by some data recoverys, so how can I completely erase data from Android without recovery?
Cheerful SMS: https://phoneringtones.info/cheerful-sms-14688.html

 

[Hadron]

If your phone originally came with Android 6 or later then the internal storage is encrypted. Resetting will remove the encryption key, so any data recovery tool would only be able to see garbage.

If it's older you can encrypt it yourself and then reset it.

So no, talk of "easily being able to recover data" is just the usual Internet mythology.

 

[James_Watson]

factory reset + clear cache partition

 

[vera pantano]

If "Completely erase all the content" contains your firmware too, flashing a stock firmware would work for you best hopefully as you have a reasonable doubt about being recovered