need help with pavo 20 pro 2

[ebon sigil]

need help with pavo 20 pro 2 for some reason i cant arm it i have a dji googles 2 and controller 2 the view in the googles are fine but i cant arm the drone someone pls help

[ocean ridge]

Do you see the channel values in the Receiver tab of the Configurator react when you move the sticks and switches on the controller?

[ebon sigil]

no

i cant turn it on sbus

[ebon sigil]

can you help me?

[ocean ridge]

What version of the Configurator are you using?

[ebon sigil]

what do you mean (im new sorry)

[ebon sigil]

can you just say to me what i need to turn on and off that it works

[ocean ridge]

That's impossible to say without knowing more

You can see the Configurator and Firmware version in the top left when connected

[ebon sigil]

wait i just saw something and its saying arming turned off

[ebon sigil]

and version 2025.12.2 (a2d0f50)

[ocean ridge]

Okay, and what firmware version?

[ebon sigil]

4.5.3 BTFL

[ocean ridge]

Okay, you may need to re-flash the firmware to get it working with SBUS

Just before we do that, get a support ID and send it here

!supportid

[barren atlas]

Betaflight Support

Submit Support Data

1. Open the CLI tab
2. Click the "Submit Support Data" button

• Optionally enter a brief description of the problem
• Wait for it to finish

3. Copy the resulting support ID

Check the image below for visual steps:

[ebon sigil]

9f947d2c-e7ac-4dcf-917e-6f30d751070e

[ebon sigil]

here the id

[ocean ridge]

Okay, yeah, we'll need to flash it

[ebon sigil]

how do i do that?

[ocean ridge]

Go to the Presets tab and make a backup first

[ebon sigil]

ok then?

[ocean ridge]

Send a bl command in the CLI and see how your computer recognizes the flight controller in the Configurator. You may need to fix the drivers depending on what we get

[ebon sigil]

whats a bl command

[ocean ridge]

Literally just send "bl" in the CLI

[ebon sigil]

ok

[ocean ridge]

Check either using the "I can't find my DFU device" option in the port selection of the Configurator, or Device Manager on windows

[ebon sigil]

wait slow down i did the bl thing and now

[ocean ridge]

Now see how (if) it gets recognized

[ebon sigil]

still nothing

[ebon sigil]

the sbus is gray tho

[ocean ridge]

Well we haven't really done anything to change that yet, just doing some preparation first

If you're on Windows, download and run the ImpulseRC Driver Fixer

!driverfixer

[barren atlas]

Betaflight Support

ImpulseRC Driver Fixer

When flashing/connecting for the first time, the default driver setup on your Windows machine may be incorrect. The ImpulseRC Driver Fixer tool can quickly and easily fix the drivers, and even automatically put your FC into DFU mode to flash directly if you're having issues.

It can be downloaded at the link below:
https://github.com/ImpulseRC/ImpulseRC_Driver_Fixer/releases/tag/v1_forever

[ebon sigil]

it says an error ocurred while entering bootloader acces to port COM3 was denied

[ocean ridge]

Make sure to close the Configurator and other apps that can take over USB communication. Some 3d printer slicers like to do that

[ebon sigil]

even beta flight close?

[ocean ridge]

Yes

[ebon sigil]

now its saying unexpected number of devices detected

[ocean ridge]

Try disconnecting other USB devices other than your mouse and keyboard

[ebon sigil]

and also drone

[ebon sigil]

and its still saying that

[ocean ridge]

You need the drone connected for it to be able to fix the drivers for it

[ebon sigil]

sorry didntt mean that

now

[ebon sigil]

drivers fixed saying

[ocean ridge]

Restart your PC and then see if it gets recognized as a DFU device with the process I described before

[ebon sigil]

done

[ebon sigil]

whats a dfu devise

like controller?

[ocean ridge]

The flight controller has one main chip that runs the whole operation. It can either be in the normal running mode, or in a specific mode used for updating the firmware on it, DFU stands for "device firmware update", when in DFU mode, it should show up as a device with "DFU" or "bootloader" somewhere in the name. But sometimes the computer can't recognize it without installing new device drivers or fixing the existing ones.

Now you fixed the drivers, and we can check that it gets recognized correctly for updating the firmware.

[ebon sigil]

can i see with like a game?

[ebon sigil]

i have uncrashed on my pc i played it before the drone came and it was fine

[ocean ridge]

No, no, we're trying to change the firmware on the drone.

There are specific options that don't fit in the limited space that we have to work with on the flight controller chip. Receiver protocols can be some of them. The flight controller has firmware that only supports the CRSF receiver protocol from the factory, but you need to use SBUS. For that we need to build new firmware and flash it to the flight controller

[ebon sigil]

btw i have a dji controller 2 just letting you know

[ocean ridge]

Yeah, it talks to the DJI air unit inside the drone, which can only output the RC signals as SBUS to the drone's flight controller

[ebon sigil]

ok tell me what to do

[ocean ridge]

Open the Configurator app again, put the flight controller into DFU mode again with the bl command and see if it gets recognized in the "I can't find my DFU device" pop-up

[ebon sigil]

configurator app wdym?

like beta flights

[ocean ridge]

Yeah, the Betaflight app

[ebon sigil]

and in the consol bl

[ocean ridge]

Yeah

[ebon sigil]

ok done

[ocean ridge]

Now select the "I can't find my DFU device" option in the top right, and get a screenshot of the pop-up that shows up

[ebon sigil]

it doesnt say that

[ebon sigil]

im back at the start

where you connect your drone

[ebon sigil]

i have like connect your drone and firware update

[ebon sigil]

its all in german btw for me

here

[ocean ridge]

you can select your language at the bottom

[ebon sigil]

sorry here again

[ebon sigil]

where is this

[ocean ridge]

It's an option in the selection input where yours says "Betaflight STM Electronics"

that likely means that it's in the regular working mode

[ebon sigil]

no thats the drone

the beta flight stm electronics

[ocean ridge]

Yeah I know, that's how it should be recognized when it's not in DFU/bootloader mode.

You should be able to select the "I can't find my DFU device" option after putting it into bootloader/DFU from the CLI, and then see what shows up in the selection window

[ebon sigil]

how can put it into bootloader/dfu?

[ocean ridge]

by sending the bl command in the CLI

[ebon sigil]

now its like this

[ocean ridge]

good, that's what we want to see

[ebon sigil]

now what

[ebon sigil]

do i connect to my drone?

[ocean ridge]

give me a second, I'll write out some quick steps

[ebon sigil]

ok no problem

[ocean ridge]

1. Disconnect USB now, and connect it again
2. Go to the Firmware Flasher tab, and click the Detect buton roughly in the middle of the screen
3. It should show the board as BETAFPVF405, and select 4.5.3 as the firmware version.
4. To the right of where you chose the board and firmware version, you'll likely see the Radio Protocol option listed as CRSF, change it to SBUS
5. Make sure that the other firmware options are filled in, and that your OSD protocol is set to Digital. It should already be, just a double check
6. Get a screenshot and send it here for confirmation. I'll quickly go over it and then you can continue to step 7
7. Click Load Firmware [Local] at the bottom right, wait for it to download, and then click Flash Firmware.
8. It will likely disconnect and reconnect the drone, and ask you to select the DFU device instead, when you select it, it should begin to flash

[ebon sigil]

here

[ocean ridge]

Good, continue

[ebon sigil]

there is nothing dowloading bottom right

[ocean ridge]

It'll take a while

[ebon sigil]

for me it opens up explorer

[ocean ridge]

Oh yeah it wants you to make another backup

Do that, that's good

[ebon sigil]

to be sure you want to click the bottom right button

[ocean ridge]

Yes, then the "Flash Firmware" button will be active, you can click it, make a backup, and it should start flashing

[ebon sigil]

and the explorer says that i need to open up something

i dont understand it wants me to do something like open up explorer and to drag something in it

[ebon sigil]

yo you there?

[ocean ridge]

Wait, sorry, I was confused

Give me a second, the connection isn't great here

[ebon sigil]

k

here

still nothing

[ocean ridge]

I'm sorry for the confusion. You need to click the 2nd button from the right, the one that says ONLINE not LOCAL

[ebon sigil]

oh

haha LOL

no problem

[ebon sigil]

ok done

[ocean ridge]

The flashing progress bar finished fully?

[ebon sigil]

yep

now what

yo still problem with internet?

@ocean ridge you there

[ocean ridge]

Yeah really sorry

Now go to the CLI tab, and load the backup file you made

[ebon sigil]

you mean before of after

the tab where is says presets or when load firware

[ocean ridge]

Either one should work

[ebon sigil]

what command to i need to press

[ocean ridge]

There should be a "load from file" button, or you can copy and paste the contents in manually. It will likely complain and show some errors, but they can be safely ignored

[ebon sigil]

how can i connect my controller to the beta flight app?

[ocean ridge]

The Betaflight Configurator app is just for the drone

[ebon sigil]

ok is it all done now?

[ocean ridge]

Did all of the settings load and get saved?

[ebon sigil]

yes

[ocean ridge]

In that case you should be good to set the receiver protocol to SBUS in the receiver tab if it isn't already

[ebon sigil]

k

but pls wait a second if something goes wrong

nope still nothing

maybe i did something wrong in the settings

i forgot about the mods

what aux is ledlow

[ocean ridge]

No values changing in the receiver tab?

[ebon sigil]

no there is everything good

the aux stuff is gone

[ocean ridge]

What do you mean?

[ebon sigil]

like there was nothing and now i need to add range and put it onto aux again

and i have other problem with sensors

im pointitng the drone forwards but it goes back

can you help me with this?

[ocean ridge]

That sounds like the backup wasn't applied correctly. Manually copy the text, paste it into the CLI and send it. Then manually send the save command