Maybe this is a silly question, but why is it that after updating my 12Kpv to the EG4_FAAB-2021 firmware, it displays its current firmware as EAAB-2021, with the letter "E" instead of "F"? Hopefully this is normal, and not some indication that the firmware update didn't quite work?
That should be correct for the 12kPV. You shouldn't have any issues. However, If you run into any issues with the inverter, feel free to reach out. We’ll be happy to review the data and help troubleshoot.
Thanks! I do have an issue with the inverter after upgrading to the FAAB-2021 firmware, which is why I was double checking everything, but I think you've already got someone working on it over there. There's a relay which is cycling on and off once the battery becomes full. This is the thread on the DIY solar forum where I was describing it, in case it helps you or anyone else: https://diysolarforum.com/threads/eg4-inverter-relay-cycling-when-battery-full-after-firmware-upgrade.103615/