One could, however, the chances of recovering deleted data of this type from the internal memory of the phone in mobile phones, with a working TRIM mechanism, which cleans cells from old, unused data and encryption is virtually impossible. Often even the next day after deletion after the file is only a trace in the form of a name, and after the content even 1o byte does not remain.
In addition, in this root model you can generally unlock the bootloader, uploading the converted recovery and then the corresponding package. Unlocking the bootloader in turn will restore the factory settings, including clearing and encrypting the internal memory again.