if the hardware does not work that should not be linked with the software as it is hardkey not programmed by the software-conatct B+O for service I suggest...and good luck :-)...thge service get worse and worse

It can be an issue with the software, try this trick:

Hi thanks for the tip - do I do this before I apply a config file i.e. the charger being connected to the PC via USB or following the application of a config file? many thanks

After you have updated the Beo6 and whenever you experience the dead hardkeys.