# Unable to bind controllers with starling 2

Source: https://forum.modalai.com/topic/4504/unable-to-bind-controllers-with-starling-2
Category: Development Drones (https://forum.modalai.com/category/44/development-drones)
Tags: fpv
Posted: 2025-06-11 21:52:48 UTC by taiwohazeez
Replies: 14 · Views: 3209

## taiwohazeez · 2025-06-11 21:52:48 UTC

Hello, I have a four starling 2 drones, but I’ve not been able to fly any simply because I’ve not been able to bind my controllers to them. I initially got an orqa FPV controller, now I have a commando 8 elrs transmitter, I still can’t bind it. Can you kindly assist. Also my elrs LED on my drone keeps blinking between blue and pink, i think it’s not going into binding mode, despite using the command voxl-elrs —bind. 

Thank you for your help.
Best,
Taiwo

## Reply by tom (ModalAI staff) · 2025-06-11 22:05:54 UTC

@taiwohazeez What is the SKU of your drone? `voxl-inspect-sku`

Do you know what receiver is on your drone? Ghost and ELRS would require different receivers

## Reply by taiwohazeez · 2025-06-12 12:29:41 UTC (in reply to tom)

@tom SKU : MRB-D0014-4-V1-C27-T9-M0-X0

From the invoice, I can see Ghost Atto 2.4Ghz 
Thanks

## Reply by tom (ModalAI staff) · 2025-06-12 17:10:59 UTC (in reply to taiwohazeez)

@taiwohazeez Have you reviewed this doc?

https://docs.modalai.com/orqa-ghost/

You'll have to use the Orqa FPV controller, an ELRS commando will be incompatible with this receiver

## Reply by taiwohazeez · 2025-06-13 16:18:14 UTC (in reply to tom)

@tom thanks. I’ve been able to bind two of them.

## Reply by taiwohazeez · 2025-06-17 14:13:38 UTC (in reply to tom)

@tom thank you for your help, I was able to bind two of my drones, but the other two keep saying unknown RX. Can you assist me with that ? 

Thanks

## Reply by tom (ModalAI staff) · 2025-06-17 16:52:36 UTC (in reply to taiwohazeez)

@taiwohazeez Are they also equipped with Ghost receivers?

## Reply by taiwohazeez · 2025-06-17 18:08:48 UTC (in reply to tom)

@tom yes, they were purchased together

## Reply by tom (ModalAI staff) · 2025-06-17 19:16:08 UTC (in reply to taiwohazeez)

@taiwohazeez I unfortunately don't have any knowledge that isn't on our public docs link that I shared

## Reply by taiwohazeez · 2025-06-17 19:39:28 UTC (in reply to tom)

@tom alright. Thank you! I will look into it again, hopefully it binds

## Reply by taiwohazeez · 2025-06-17 21:45:00 UTC (in reply to tom)

@tom sorry to bother you once more, i got one more drone binded, but it refuses to get armed. I noticed that the ESC led (blue) isn't coming on. Do you have any suggestions? 

Thanks.

## Reply by taiwohazeez · 2025-06-17 21:53:29 UTC (in reply to taiwohazeez)

@tom when i power up the drone, the led flashes, but after that, it stops

## Reply by tom (ModalAI staff) · 2025-06-17 21:58:13 UTC (in reply to taiwohazeez)

@taiwohazeez I recommend connecting the drone to QGroundControl via WiFi and then seeing what PX4 pre-arm checks are failing

## Reply by taiwohazeez · 2025-06-17 21:59:37 UTC (in reply to tom)

@tom alright. Thank you for your time, I will do just that!

## Reply by tom (ModalAI staff) · 2025-06-17 22:01:01 UTC (in reply to taiwohazeez)

@taiwohazeez No problem, it would also be helpful to know what SDK version is loaded on your drone. You can check this with `voxl-version`