Sorry Solar DYI for interrupting your thread. But I guess this was a real world example of Growatt issues resolved . Thanks to everyone for the reply, Just got off the phone with Growatt, they said it was set to 50hz. So he said he had to go in and turn off the ability for it to produce so it would not hurt anything. Once he got that done he moved to power the unit off Solar power. Then he was able to do a firmware update. He said there is 3 firmware updates in one. Also he said only installers can access the Grid code in quick settings in the app. So it would not hurt for buyers to check these settings before they finalize grid connection. Thanks