Hi @ubuntoutou, It makes a while that I didn't touch it but it was working well for PRO5, I'm using it for my own backup and restore.
If you use it please let me knwo about the result !;)
You will need as much free space on your hard drive as the phone occupancy.
For example if you have a 32Go memory and you are using about 16Go, you will need 16Go of free space on the computer where you are running the installer in backup mode.
Hope this will help you.