BlackBerry Passport Stuck in Reboot

This happened a week ago; my Passport rebooted by itself and would not load the OS after being stuck on 100% boot screen for 15+ minutes. So I help the on/off button until it launched reboot again.

It took a few tries, but it worked.

Today it has happened 3 different times, each time not being able to successfully launch the OS! Each time took 45+ mins to finally load.

Please, help, any input is much appreciated.. I cannot have a phone that is this unreliable on a daily basis.
Thank you guys in advance.

Posted via CB10

You probably reload the OS.
Connect you passport to a computer, make a full backup, reload the OS, and restore your backup.
If this doesn't solve, do it again, but do not restore anything.