Reciever Does Connect but doesnt respond in betaflight

[terse sequoia]

Hello everyone,
I purchased a prebuilt 5in GEPRC MARK5 and a brand new Radiomaster Boxer ELRS version. My reciever Does Connect with my controller but When i use my sticks, nothing happens in betaflight. The flight controller is bind correctly, port is set up correctly, ADC filter is off, CRSF and serial well select in betaflight, firmware is updated… but after all, the joysticks don’t show any signs. I spent more than 10 hours trying to solve the issue. please help! Someone who knows How to fix it please?

[vagrant karma]

post a screenshot/photo of the expressLRS Lua Script while TX and RX are bound/connected

[terse sequoia]

Thanks you @vagrant karma for your quick reply 🙏🏽

[vagrant karma]

do you have a dji air unit on the drone with all 6 wires connected to the flight controller?

[grizzled yarrow]

What is the LED on the receiver doing?

[terse sequoia]

Yes I have DJI O3 air unit. And it a prebuilt drone so it was connected to the flight controller from the manufacturer

[vagrant karma]

that's not what I'm asking

were all 6 wires from the air unit connected to the flight controller?

[terse sequoia]

Oh Sorry! I’m a beginner in the hobby so I’m still not fully understanding technical language!…can I send the pickup of the flight controller. Will it help to understand. Sorry if I’m confused

[vagrant karma]

take the top plate off the drone.. find the connection of the air unit, count the wires from it going into the flight controller.. and tell us the count..

[terse sequoia]

Good morning! There are 6 wires connected form the air unit to the Fc

[terse sequoia]

Good morning! There are 6 wires connected form the air unit to the Fc

[vagrant karma]

disconnect the SBUS wire..
i.e. !depin the plug so the sbus wire is not in the harness

[random vortex]

https://www.youtube.com/watch?v=fh9gvhobVro

[terse sequoia]

I tried everything but I still received this warning

[grizzled yarrow]

Show your ports and receiver tabs in Betaflight

[grizzled yarrow]

Isn't your receiver wired to UART3?

[terse sequoia]

I’have tried the UART3 but still the same. And the paper configuration of GEPRC don’t mention UART3 for TBS/ELRS

[grizzled yarrow]

Is this the receiver here?

[terse sequoia]

You’re a genius! It’s works. I reboot everything and try UART3 again and I have a mouvement. You have no idea how I’m happy! I spent more that 20 hours reading and watching video. Wooo thanks you! Thanks you so much