Question about Passport 8500 Radar Detector
Display stuck in "AUTO". Have attempted RESET numerous times with same result. Radar will post normally and display "AUTO". Pressing top two buttons for 2 seconds per instruction also failed to progress beyond AUTO" mode. Several times, by pressing top two buttons and cycling on/off dial, I was able to get "PROGRAM" and gone through the routine per insturctions in the manual. Upon completion, it will revert back to 'AUTO" and freeze.
Seems like software problem.
Anyone has same experience and able to suggest soultions?
I take it that pressing the 8500's City button won't switch sensitivity modes? If so, and if performing a RESET doesn't resolve this problem, then either the firmware is corrupted or (most likely) the micro-switch for the City button has gone bad and needs to either be replaced or possibly resoldered so that its two terminals are once again making full contact with the solder pads on the circuit board.
Posted on Mar 19, 2009
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Posted on Jan 02, 2017
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