Hello Oliver,
Thank you very much for your availability and for your very quick reply.
I also really appreciate you sharing the AR version and the detailed suggestions regarding the serial communication troubleshooting.
Unfortunately, despite several attempts using different laptops, cables, PC operating systems, and various virtual machines, the communication issue has not been resolved.
At this point, we are waiting for a refurbished PP35 to proceed further.
In any case, thank you again very much for your support and for providing the AR version.
Best regards,
Lorenzo