Question Purchased used 6000xp now appears to be bricked after connecting to internet

Hello, I purchased a used 6000xp from marketplace with the intent to parallel it to my existing 6000xp. When I initially fired it up it had errors relating to battery communication as it was configured for a lithium battery with BMS communication. I managed to fumble through the LCD menu and changed it to lead acid since my battery doesn't have compatible BMS communication. It now read correct battery voltage but was stuck in standby. I removed the wifi dongle from my existing 6000xp and attached it to the used one as I figured it would be easier to make changes through the web interface. A few minutes after connecting the dongle it came up with error 00. Based on that error I figured I should update the firmware. All attempts to update have failed. I can get it to firmware ccaa-1E1500 but it fails on the last update. After power cycling it is back to 001500. I get to EPS power output. Is it possible the units serial number is red flagged and causing it to shutdown? Just seems odd it went downhill after connecting the dongle. Any help would be appreciated. Thank you.