How to enter hidden menu in #Porsche PCM3.1 infotainment unit to check system software version, currently installed components, update history, and device serial number. To enter #PCM hidden system information screen press at the same time buttons SOURCE and INFO. To exit this #hiddenMenu simply press RETURN button few times.
0:00 Porsche PCM3.1
0:18 Button combination
0:30 PCM hidden system menu
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