My R520 seems to have developed a problem, I now dial the number but cannot
hear the other party, I started testing on the time info number and these
are the symptoms...
1 When I commence a call from the car, the handset shows the standard
connecting dialogue
2 As communication commences the display shows the profile switching to
outdoor, then car, then outdoor, and on and on it goes...
3 When I remove the handset to end the call there is some delay whilst the
profile switching continues as I attempt to end the call by pressing the NO
4 I have also noticed that when I put the handset (when it is off) in the
cradle that the ENTER PIN message appears, where as the phone would
previously just display "Ericsson .... charging"

Anyone have any experience of these syptoms and a possible solution?

See More: R520 and car kit problem