Sungrow Firmware Update

[josch88]

I am using this integration for a while now and it is running well.
And to keep it running well i wonder if it is recommend to regularly update the invert and battery firmware to stay up to date.
Who you are handling this, guys?

[Gnarfoz]

Sungrow recommends updating...

• During initial setup
• When expanding your setup
• When you're having problems
• If so instructed by Sungrow support

Basically: never touch a running system. 😉
Particularly since Sungrow does not publish any kind of release notes or change log, so every firmware update is a new mystery.

I'd primarily apply this mantra to the inverter itself. Battery and WiNet-S are less critical, although supposedly there can be issues when your inverter and battery/WiNet-S are too many versions apart. I haven't experienced any, though.

[josch88]

Thanks for you reply, but I can remember that Sungrow themselves introduced in 2024 an auto firmware update as part of a new release of their App/WebApp, which is by default turned on.

[Gnarfoz]

Yes, ironic, isn't it? 😅

[josch88]

Agree, somehow strange.
Anyway, I see in several posts for this integration people comparing their more or less recent firmware version, to potentially narrow down issues. So I still wonder if it might make sense from time to time to be up to date.
But I agree, that it is really annoying that Sungrow never publishes any firmware history.

[DrPVgren]

I have interpreted the recommendation to update "When you're having problems" in a wide sense. There's always "problems" to a greater or lesser extent, so I have kept the system up to date. For example, I had an issue with the inverter occasionally not producing despite sunlight. Restarts of the system resolved the issue temporarily. When available I updated the firmware and the issue was gone. However, as a consequence of the update the inverter did not go into standby mode at night. A new update resolved that issue. It's a gamble and a vicious circle. I blame Sungrow, but i guess I will be the one suffering the consequences if the system explodes after an update...