Where can I find the previous version of firmware for the 280ah all weather wall mount?  

Correct, updated to the latest firmware the other day and now not getting the battery stats in the monitor.  

Having this issue on a two FlexBoss21 and four 260ah all weather wall mount batteries, any updates on a fix to try?

This is what I get in dev view, only thing I changed is replaced the serial number with 123456789{"success": true,"serialNum": “123456789”,"lost": fal...