After updating, some users had previously noted that it was necessary to perform a 'drum' reset of the unit. With the unit on, press and hold the power button for 20 seconds until you hear the drums, then release.
Same issue here....drove thru four states and no signal...did the hold and reset 10+ times no dice...piece of jumk...trashing it for the next brand..maybe a Garmin...saw too many discussions about download this check that...Its a sat signal...download it automatically???? why all the steps to fix it??? poor planning as I see it. Sorry I bought it.