Information incase it can prove to be useful and dont have to search for it:
Pioneer AVIC-Z2
Hard Reset Unit:
When Pioneer boot logo appears on screen during startup press and hold the MAP BUTTON. Keep holding it until the reset menu appears and choose the option desired.
Service Menu:
Fold the screen down by hitting the eject button on the front. Make sure there is no disc in the unit. Once the screen is down press and hold the inner EJECT BUTTON while taking a small pin and pressing the small RESET BUTTON on the front panel. You will see "Push Reset button or Restart Engine" at this time release the EJECT BUTTON.
Enter the following password sequence:
P. List Up
P. List Up
P. List Down
P. List Down
T
Service Menu Will Appear, Hit the outter face close eject button and you will be in service menu.
Use arrows to move between options and pages, use AV for back button, and use T for enter button. To exit push reset button or turn car on and off.
I ALSO NOTICED: that when you hard reset with the mega upload image and do the hard reset by choosing clear all data. it freezes and just chills there until the unit is powered off and on again. I think its the mega upload image that is bad.