Porsche radio 997 not working

[oskarr]

Hi please for advice. My 6691 radio doesn't work. When turned on, only the Porsche logo appears and turns off in a moment. . PCM 2.1 .. Thank you very much

[Cropley]

If you hold down 1,4 and 8 this will reset the system. Worth a try and cant do any damage. Alternatively have heard sometimes disconnecting the battery overnight and it works again

[oskarr]

I tried but not working. Radio is blown out of the car for a long time but has not helped ..

[oskarr]

after reset nothing happens it's the same. no one has any advice? Thank you

[jakesmith]

Perfect opportunity to rip the whole diabolical system out & start again

[oskarr]

do you think radio is KO? we replace system with another system