My device just got into bootloop after restoring a backup of the system partition.
This bootloop is just a soft bootloop. I mean, I could get into the Operating System, but it keeps playing the Boot Animation.
I just solved the problem by installing a ROM (in this case, CM13), and the problem is gone.
I still need to wipe and do a Factory Reset, because it came from another ROM.
After wiping, the ROM should install, and you could now get to the Operating System.