new 690SE freaks out and says "powr off" IIRC it was or something to that effect randomly.
ive tried different cords, different cars, etc. itll just go completely ape**** and tell me on the screen to shut it off.
ive also had it freak out and just start blasting a reading over and over, with nothing around, almost on a timed cycle, blaring a reading, then nothing, then blasting, then nothing.
bad software? somehow it has been corrupted?
at this point i trust my old detector more than this one. its been doing this over a period of several months. along with the LED stuck on behavior after start-up.