Hi guys sorry for the bad English but I am Italian and I hope you can understand me 
Unfortunately a few days ago i have a problem with my F320BT.
Lately my F320BT took too long to shut down but I did not paid much attention.
Yesterday the screen stopped working. The sound (usb, cd) works but the screen remains stationary navigator to my house street.
The buttons all work (except touch) and except the button "mode". Also the controls at the wheel work .
I can not restore the navigator from the menu and i can't attach it0 to the PC because the screen is locked. I read that there is a reset button to the right of the front but when I put the screwdriver / needle into the hole, the surface are harsh and I do not see the shadow of a button that resets everything.
Can you give me a hand to reset or if you had just an overall solution to my problem?
Thanks for those who will help me