The Good (Pros) ✅ Enables critical fixes & new features: Firmware updates can resolve bugs (e.g., incorrect SOC readings on batteries), improve battery charging algorithms, add new Modbus registers, or enable features like forced self-consumption modes.
❌ If a new firmware introduces bugs (e.g., higher standby consumption), you cannot easily downgrade – many versions block reverting. Goodwe Firmware Update
❌ The PV Master app can update Wi-Fi/LAN sticks but often fails for inverter main firmware. Most serious updates still require an SD card and manual file editing. The Good (Pros) ✅ Enables critical fixes &