Ok, so here's the deal, I'm trying to delete a file on my x850 while in test mode. I've seen some videos for some other models and they have a delete option when your in test mode. My x850 does not give me the option to delete. Anyone know of a way to do this? I'm trying to delete my password security file because I am inputing the correct password but the unit will not accept it. Any info would be helpful. Thanks guys.