I just got gifted the Arris FPV C250v2 with the Radiolink At9s - I've got a little flying experience but this damn thing will not turn on past the alarm beeping! Anyone got any simple stupid tips that I'm missing??? Thanks!! Doug
Hi Doug (@Elastic Monkey), it could be that it is set up for "stick arming", try bringing the left stick down and in towards the center of the controller to see if that arms the motors. If it does, then down and away from the center should disarm it.
If it does "stick" arm, I would suggest plugging into Betaflight and setting it up for switch arming, if it does not, the next step would be to plug it up to Betaflight and see how it is configured. If you need any help PM me.