I upgraded my Royal SRS from 10.4 to 12.4 last night, and I'm now seeing zero volts on the V-batt 1. I tried swapping the batteries from socket batt2 to socket batt-1 and vice versa but it doesn't make a difference, zero volts on V-batt 1 on telemetry and on the screen. Any thoughts on what could be going on? Have you seen this before? Should I try to downgrade the unit?
I hope to hear back soon, thanks in advance for your support.