I am the lead FlytOS developer, and I am sorry that you are facing loads of issues in using our product. Please be assured that we take all your queries seriously, and are working right now to get them all sorted out ASAP. Regarding your RSSI issue, it was working sometime back, but an API change broke it. Thanks to you, we have resolved this now and you can access the data in FlytConsole GCS widget as you can see in the RC_IN tab in the picture below.
To get the update, download this file into FlytPOD, and run the following command:
sudo /flyt/flytos/flytcore/share/core_api/scripts/firmware_upgrade_usart.sh ~/nuttx-navstik-v1-default.flyt
Feature request to observe RSSI data in the top bar has been forwarded to FlytConsole dev team, and it should also be incorporated very soon.
Thanks for your patience and support.