(31-Jan-2022, 01:04 PM)lew046 Wrote: Is it possible if i reflash the FC betaflight it will work?
it is strange none of uart2 or uart3 not works.

I tried another nano to UART3 and still not works, no stick input. (Crossfire binds flawlessly but no stick input).
I upgraded my emax tinyhawk2 freetyle with the same reciever and that works good.

There is no harm in trying to re-flash Betaflight firmware to the FC. Make sure you switch the "Full chip erase" option on when you do that.

TBH, the iFlight catalog of FC's and firmware targets is a complete mess. They have umpteen revisions of the same FC with minor tweaks because they screwed up the hardware design, then they have a load of different firmware targets. We had another member recently post issues on here with their iFlight FC and it turned out that the FC had the wrong Betaflight target flashed to it (from the factory). All of these issues is a good reason to stay well away from iFlight electronics, or quads that contain their electronics.

(31-Jan-2022, 01:21 PM)SnowLeopardFPV Wrote: There is no harm in trying to re-flash Betaflight firmware to the FC. Make sure you switch the "Full chip erase" option on when you do that.

TBH, the iFlight catalog of FC's and firmware targets is a complete mess. They have umpteen revisions of the same FC with minor tweaks because they screwed up the hardware design, then they have a load of different firmware targets. We had another member recently post issues on here with their iFlight FC and it turned out that the FC had the wrong Betaflight target flashed to it (from the factory). All of these issues is a good reason to stay well away from iFlight electronics, or quads that contain their electronics.

Yes! I reflashed the FC and solved the problem! Thanks!
Now i have stick movement in Betaflight.

 
Do you know best settings for crossifre for good quality and RSSI?

The most important setup for Crossfire is antenna placement for better RSSI and LQ especially if you are flying at a distance away from yourself to avoid antenna nulls.

On the TX module, I just set the power to dynamic and Crossfire adjust power levels based on its requirements. Another important thing here is Region settings to ensure you are flying in the correct frequency range.

On the RX module, RF profiles are dynamically adjusted by Crossfire unless you force it.