ok the mystery deepens tried to update firmware no matter what i did error messages came up, please check ac power cord , check serial cable is connected tried everything several times checked com port all is good will not take firmware update i thought maybe it would help just a shot in the dark !!! , the other day it started showing illegal voltage , plugged it in for the night shut it off , turned it back on this a.m the p25 came back to life , no illegal voltage showed up at all today , now i did a search from 25.000 to 1300.000 did not stop on one thing so that may be still messed up