@mlx333

Your Betaflight settings and the wiring all looks to be correct.

A couple of things to double-check:-

1. Check that you don't have a short on either the TX1 or RX1 pads to each other, or to either 5V or GND.
   
2. Run the Crossfire LUA Script on your transmitter, connect to the XF Nano and then under the Output Map section check that CH1 is set to CRSF TX, and CH2 is set to CRSF RX.
   
3. Try re-flashing Betaflight to the FC with the "Full chip erase" option switched on. Don't forget to save a "diff all" backup of your current settings first.
   

Failing that, try a different Crossfire Nano RX receiver. I notice you are using a revision 45 Nano RX and we have recently seen a number of failures with those out-of-the-box for some unknown reason.

(09-Mar-2021, 11:14 AM)SnowLeopardFPV Wrote: Failing that, try a different Crossfire Nano RX receiver. I notice you are using a revision 45 Nano RX and we have recently seen a number of failures with those out-of-the-box for some unknown reason.

Coincidentally I had a Nano RX (Rev 45) on my Explorer LR where I would lose telemetry placing the quad on grass 5 meters away from me and waiting for GPS to get a lock. And mid flight testing I would lose sticks completely.
Once I managed to land safely, I looked at the antenna connector to ensure it had not popped off.
I flew my SourceOne build immediately after and it was all perfect. Just to rule out if it was my radio or some interference.
Flew back the Explorer and the same loss of sticks mid flight.
Went home and swapped the Nano RX with an older one I salvaged from an older build and it was perfect.
I have 2 more on order from a local shop to be delivered in a few days and I hope they are not the same 45 revision.

Hey I have a tbs tango 2 pro and a crossfire nano diversity receiver I am having the same issue with, I managed to successfully update the tango 2 pro, the nano reveiver, and bind the 2 to achieve a solid green light and telemetry notifications from the remote, yet there is no stick activity or switch activity on betaflight. 

I have adjusted 
-serial based receiver and crsf as well as telemetry activated
-adjusted uart to uart 2 on (this is the uart I connected rx and tx)
-updated tango 2
-updated nano diversity receiver
-completed bind procedure (light stays solid green and remote notifies model connected) 
-sat around reading forums on the internet for countless hours lol

Any help would be appreciated I will post my cli file next 

fc-HGLRC zeus35 aio

(17-Jun-2021, 12:35 AM)yopz Wrote: Any help would be appreciated I will post my cli file next 

In addition to the CLI dump please post a clear picture of your wiring. 

Cli dump
https://docs.google.com/document/d/1JOz2...sp=sharing

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not very clear I apologise I have terrible lighting

You need to set serial RX to CRSF:

ah sorry I had already switched to sbus to allow me to fly by the time I sent you the code, it was correctly set serial rx to crosfire when bound and tested