So today i was driving and my radar was working great like usual. Then a couple hours later when I went home My radar turned on and there was no noise or anything. all it showed was C 14.4 V. then I stopped by the local jewel and k band went off and it showed C 24. 8 I think. I went to the manuel and the tech showed that it was indeed K band. I tried setting it back to the factory setting at least 3 or 4 times and it didn't work...... What should I do..... Help me out. Thanks.