Updated to 2.3.7 and have lost my Standby/Operated button below the amp meters. I see that the amp swr meter also changed so the 1.2 is at the far left side but still red at 1.2 swr all the time. Is this normal for now??
It is normal for the red line to be at 1.2 SWR as it does not detect anything lower. The bar graph resting position is at the minimum it detects.
Try shutting down both the radio and amp (rear power switch on amp) and turn back on. If you still do not have AMP displayed on bottom right of SmartSDR you can try resetting amp and reconfiguring the connection to the Flex.