SpanishFlyer

Don't hold your breath on those hopes. We are pretty much seeing the same hardware compatibility issues that we experienced early on when Home Computers became mainstream. Frustrations from all corners of the globe.
Fortunately that was mostly resolved, albeit took a decade or two.
Now the Mainboard OEMs have proper online support on their websites and the end user can view all tested compatible hardware and BIOS releases with release notes and decide if they wish to do the flash.
Maybe one day the solar industry will wake up to the fact that the end user is what's keeping their business going. The lack of online support wrt Technical information, Firmware releases and Notes is beyond belief in an era where it has never been easier to communicate information.
Why this seeming reluctance to post the files with the Notes and a clear indication that flashes may cause problems and are at the users risk.
 

Thanks a lot ZSDE, 
I see you have done your homework and I thak you for that. I fully agree with you, leaving the same model number, when the new one even has a different comms card and firmware.
I am now thinking of trying another Growatt instead, the  Hybrid 5kW SPH5000... just hope they haven't messed it up the same way, because I have to use my less than a year old Pylontech US 3000C batteries.
Thanks again and keep in touch.
Best regards,
Spanish Flyer