Got this Radar detector on june 24 i think it was now im getting the service required message which i have never seen before. Detector goes fine for like 20 30 minuites then it keeps beeping saying service required. I tryed to go in to programming mode and it says Cal Error. it also seems to get alots of false alerts on Ka band even out the middle of no where. I looked on beltronics/escorts website and it says something about the power supply but the thing is when i had my Escort 8500 X50 in the same vehilce it didn't have that problem. I normally have it connected to a double plug cos i like to have my GPS running as well. I tryed it with and with out the Double plug still same problem. have taken it back to the store where i got it from so it could be sent away really annoyed i feel like beltronics has failed me. I have used beltronics/ escort radar detectors for years and they have never let me down with faults or anything.