Firmware V100R001C21SPC112 and Modbus 2.8 (?)

[cjungde]

Hi All,

The mySigen just offered me the update the the firmware version V100R001C21SPC112
The text in the app mentions the new Modbus definition 2.8 and there will be an update of the app in the next days to support the new features.
Anyone seen the new definitions and what will be available now ?

[dajupp]

anyone updated firmware and HA still works? is it safe to update?

[StroppyOz]

It worked for me. I did, however, break my OCPP server which has caused me all sorts of grief due to having a poor backup regime. So, take my experience and ensure you're backed up before updating HA. Then you'll be able to roll back if you have a problem. From: dajupp ***@***.***> Sent: Saturday, 27 December 2025 6:34 PM To: TypQxQ/Sigenergy-Local-Modbus ***@***.***> Cc: Subscribed ***@***.***> Subject: Re: [TypQxQ/Sigenergy-Local-Modbus] Firmware V100R001C21SPC112 and Modbus 2.8 (?) (Discussion #280) anyone updated firmware and HA still works? is it safe to update? - Reply to this email directly, view it on GitHub<#280 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BPOKIDZ7QXE5SN7S5FVBAYD4DYY6FAVCNFSM6AAAAACPSGMY7KVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMZVGA3TGMY>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.******@***.***>>

[cjungde]

I installed it directly and I don't have issues in my setup so far.

The correlating app version 3.3 is also available now.
You can find the 'Whats new' in the Mobile App Section of the learning Center: LINK

[TypQxQ]

Only significant update I can see in 2.8 is added DC Charger status.

[Bembelmeister]

After updating the Firmware, I needed to restart HA, as it was not showing any data anymore. Otherwise it's working since that without any issue.