Shinetools initial password: ossyyyymmdd (current date)
Shinephone/growatt key: growattyyyymmdd (current date)
Initial passwords 12345678 / 1234

Dashboard:
https://server.growatt.com/login

Warranty details:
https://www.ginverter.com/support/warranty

https://pypi.org/project/growattServer/

https://github.com/johanmeijer/grott
https://forums.whirlpool.net.au/archive/9xv65qw6

https://www.reddit.com/r/SolarDIY/comments/xkizq5/growatt_inverter_and_battery_charging_time_config/
https://electricianforum.co.uk/threads/growatt-ct-discrepancy.56213/page-2