Hi,
Thanks for your feedback.
Our S3 + B11 should be able to regulate the voltage below the frequency of in the menu, but I can not. I do not know why.
I think it should work with fw 2014 10xx.

I have these fw:
2014 0711
2014 0721
2014 0811
2014 0826
2014 1013
2014 1216
2014 1219
2015 0109

I got extra 2014 1216
But I have no 2014 1024, and this would like to get. Can we exchanged them?

Thanks and have a nice day!