Could you refer me to the posts where someone might have flashed the old firmware? Seems like quite a few feature they are hiding - for example the automatic rapid shutdown, I am going to use my system as just an emergency backup but the circuit the tigo cca is on is not part of that in my load panel so effectively I am finding out I have to ask them to remove this feature remotely but have read other had the ability to manipulate locally. Either way I would be open to trying to downgrade the firmware as worst case I will just replace the CCA if I brick it.I think I saw somebody mentioning you could flash the old firmware using serial port or jtag. When I opened the unit, I saw what looked like the contacts for the serial port. Can't say anything above and beyond that. If you happen to get access to the file system somehow, I can help you modify local files to enable ssh, but that's quite a big "if"
Thanks for the quick reply btw!