Hi clvitics. My friend works on Windows, so no keychain, no notes around, about the cracker, I've tried it but after ten days or so, at nine chars, I've quitted it.
Thanks for help F.
Hi David-Dd. You're right, and it seems this is a request from years. With iOS 11 it seems there is a way to reset the password on the iPhone. Unfortunately my fried has an iPhone 5 and it stop at iOS 10.3 No way to do it.
I'm in the process to do an iCloud backup (second day now) Once it finish it I can then reset the iPhone and proceed with a restore (hope it does not keep the backup password too).