Phone cannot boot, "Unfortunately [everything] has stopped"

A

AC Question

RedMi 2. Belongs to my friend. I have no idea what he did to the phone before having this error, nor do I know the current Android or MIUI version.

He has brought the phone to me and my observation is that as soon as you turn the phone on, the phone spams the error "Unfortunately [related functions of the phone, like Clock, Settings, Gallery, Messaging etc.] has stopped working." And on the top of every error is always "Unfortunately Find device has stopped working."

I have tried doing a Hard Reset on the phone, but the phone stays on the Hard Reset screen for over 40mins with no changes.

I can't seem to find anything helpful on the Internet either. Any suggestions?