Cobra Electronics 7700 PRO GPS

YA? Quick service you say?
I bought one of their units this month.
Routing me from Memphis TN to Chester SC with a stop in Jackson, TN.....
common sense would dictate you take I-40 east from Memphis to I-26 in NC into South Carolina....about 650 miles, right?
Not Cobra.
It routed me from Memphis east on US78 to Birmingham AL, then I-20 to Atlanta, then I-85 into NC, then I-77 to Chester SC. about 90 miles further. The closer I got to Nashville, the worse it got. At one point Cobra wanted me to back-track for an additional 250 miles and by the time I got to Nashville, Cobra wanted me (first) to run I-24 east to I-75 south to I-85 north THEN it changed to I-65 north to the BGPkwy east to I-64 east to I-77 south to Chester SC. It never comported fully to my TomTom non-trucking navigational device.
Last week I ran form Knoxville to Sparks NV and Cobra had be routed 400 extra miles out AND back, by the time I hit Quad-Cities, I had 499 miles left to my destination but Cobra had me routed DOUBLE miles or 988 miles total.
I emailled Cobra last wednesday and haven't heard back from them
This Cobra GPS is an expensive fish-weight.

 

What model do you have? Surely not the 7700. I would CALL!

 

I understand the cobra 7750 stinks and is just a money trick for the company to sell it don't work even 50% of the time right they need to be sued by someone who knows how to do it to get this crap of a gps off the market

 

Hi Brian just got an SD card with the new updates for maps and followed the instructions on updating get close to end then error message pops up error copy file err5 and it removed all previous map data so know have no maps at all how can I fix plz thx

 

I doubt you will get a response from Brian