Flole dongle firmware upgrade for HM-600-2T to 800 W output OpenDTU compatible?

[pwntr]

Hi all! First off, thanks for this great tool! It's been working flawlessly for a long time for me.

Over the years I've noticed some consistent flat-lining on my inverter output during sunny days, indicating that the 2 400 W panels on my HM-600-2T could deliver more, quite often. I came across the "flole dongle and tool" to "unlock" my inverter output, and I would like to take advantage of that to set it to 800 W. Not that it would matter much financially (if at all), but it's nice little improvement for the sake of improving things ;)...

How will OpenDTU react to this increased and modified output, will it just by itself read this as a parameter from the inverter and take it as is? Are there any other incompatibilities that I should be aware of when using the flole dongle unlock together with OpenDTU? Any weird effect on total yield or other calculations?

My OpenDTU use case is very basic, I only use it to pass the inverter data readings off via MQTT to graph them all out in Grafana and run some actions on them in NodeRED. I don't set any power limits or use anything else that would actively control or configure the inverter from OpenDTU.

FWIW, I'm on OpenDTU v25.5.10, here are my current inverter details, no unlocks/upgrades done yet:

Production Year	2022
Production Week	21
Model	HM-600-2T
Detected max. Power	600 W
Bootloader Version	0.1.4
Firmware Version	1.0.10
Firmware Build Date	2021-11-01 08:42:00
Hardware Version	01.10
'Power Distribution Logic' supported	No

Thanks for your help!

[stefan123t]

Using non-vendor Firmware modifications of your inverter risk loosing the certifications obtained for your device connected to the grid. Therefor there is no support from either the vendor Hoymiles nor the OpenDTU project.

• Hear say from other with the Flole mod has it that everything is still reported the same except the calculation for the actual set power limit. This is calculated back from a per model percentage value and will probably be off for +/- 33%.

[pwntr]

Understood, thank you 🤝!