I bought a used Bluetti EB3A off of Ebay, and had the seller unbind so I could bind it to my account. It was sold as not working/charging. This being said, once I recieved it, and ran AC input, and AC output until the battery went down to 99 percent, I was able to remove AC power and the unit was charging off of a 50 watt solar panel and running off the battery. I do have the DC short error, but cannot discharge the battery to far before I get error A006 Battry Pack communication error, which shuts everything off. I want to see about reinstalling firmware. My SN is as follows:
SN:EB3A2326003551440
ARM: v2062.03
DSP: v2056.13
I am new to bluetti, and have been searching around for answers and it seems that firmware tends to be the first/best step forward. thank you very much for your time.