Really, RuiDeng should hire UniSoft, or at least pay for this enhancements on their product.
I've the theory that UniSoft might be a RuiDeng employee since the beginning. Intelligently a way to develop cutting edge firmwares without the hassle of in depth testing required to have a minimal liability protection. https://en.wikipedia.org/wiki/Skunkworks_project
That will explain the availability of firmware source code, not releasing it and ignoring donation offers.
If this theory is the true or part of it I don't know and I don't care. We have being delivered a great firmware.
RuiDeng has been on this forum before but Dave (or Simon) had to kick them off for trying sell stuff in very poor Chinglish. I think there was also some issue on them using sock-puppet accounts deleted too. UniSoft has great communications skills, so I'd wager a NO on the Skunkworks theory. Besides, Unisoft is delivering great efforts and deserves our remuneration $'s
He did a great job fine turning the stock firmware and solve most of the things I miss or dislike in this unit. What I most like is the way he gave technical explanations of how things are programmed and why some couldn't be implemented, and end with a firmware with options that help users with different wishes.
He should accept some donations of course, but if he refused he should have his own reasons and I respect that. But I can give him a thank you
for this nice custom firmware. On the other hand, RD will also gain from this because they will sell more units
RD should realize that an open source firmware, or improve features according to customers feedback will make them sell alot of units all over the world, and increase their profit and name, instead of just increasing output Amps and change model numbers to release a new model. Most of the buyers of this type of electronics are mostly amateurs, or professionals ( wanting to disassemble and study), and most of us like customizations. I personally buy stuff that could be firmware customized.
It's the same has buying an oscilloscope, those models that are easily "hacked" are the ones that sell more like Rigol DZ1054z.
As an amateur I would like to continue doing my hobby in a budget.
That's my 2 cents