Sony NV-U50 - Manual (Page 59)

User's manual Sony Personal Navigation System
Navigation - 57 -
No GPS reception? When the received GPS signal is not sufficient, the following
message appears:
You have two possibilities:
Ù Wait until navigation starts. This will happen as soon as the
GPS reception is sufficient.
Ù Tap Cancel and restart navigation as soon as the reception of
GPS signals is convenient. You may notice that by watching
the GPS symbol on the screen: it becomes GPS ready when
the reception is good.