Why it took so long to delete or wipe the internal memory (32 GB) of my Blackberry Passport?

I started wiping the internal memory of my BB Passport yesterday at 3 pm and it's already 12 pm now and it's not yet finish. Thanks.

One does NOT wipe it out. Simply directly reinstall everything with an Autoloader.
Please try again this way. Doesn't matter if the wiping process is not done.