I recently bought the NEX5000 and gave my U310BT unit to a friend. He was asking me how to change the clock setting recently after going into daylight savings. He said it wasn't working so I tried to do it for him. I went into settings from the main menu screen and noticed that the Region button item was grayed out/unavailable. The Set Home, Map and Location buttons were also grayed out. Sound and Service Info buttons were available. I have no idea why these items would be unavailable. That was not the case when it was installed in my car. Also, the F. Reset button on the bottom of the Settings menu is grayed out as well. Anyone else experienced this? Thanks!

having the same problem