When you speak of the screen are you speaking of the one in the center of your dash?
In what mode does this "oof" come on the screen ?
yes the one in the center of the dash, (the screen of the navigator and DVD...etc
when i turn the navigator on, a SIGN is shown on the screen that means the signal is off or there is no signal.
Ok,there is a problem with your window tint & the tint is blocking the GPS antenna.The only alternative that comes to mind is looking for an external GPS antenna &installing it with your system.
The GPS antenna is located in the upper center of the I/P. The GPS antenna is powered through the same coaxial cable used to send the signals to the NAV radio. Interference to the system may occur if any of the following exist:
what do you mean by I/P.
shoul i remove the anterior or rear tint