While you should be careful about major resets unless you know what you are doing, this is probably not your fault.
My guess is that like the other thread with the same issue, there is a bad connection either on the little "piggy-back" flash memory board or the connections to it, meaning that the factory programs are inacessible.
What you did deleted the user presets, which were the only visble ones, leaving nothing.
You should have someone handy open up the unit and check the solder joints and connections on and to the little memory board.
If that fails you will probably want to send it in for service, support@eventide.com
