Moode 7.01 does not start on newest RPi 4 8GB RAM

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Hi everybody, why this technical question in the Sound Quality section?

I use Moode 7.01 due to its sound quality which I find has deteriorated since with every new version of Moode afterwards. Something that happend to Volumio, too, before I made the switch to Moode a couple of years ago.

Now my RPI 3+ died, I bought a new RPi 4 8GB but Moode 7.01 does not start with error code

4 long    4 short green LED flashes    Unsupported board type


The newest Moode starts on this new RPI

1.  I think this is a kernel issue, the 7.01 kernel does not work with the new board.
   Any chance to upgrade the kernel to run 7.01?
   
   
2. Why is the SQ deteriorating and is there a chance Tim Curtis could release a Moode-Lite with just basic functions but big focus on SQ?
   

Thanks in advance

Chris