APM 2.6 Power supply

I’m facing some trouble ith my APM 2.6 (globalfly) after a reset to default I have no power supply. APM is starting with USB and not with LiPO.
Under USB every things goes well (arming, motor control,…) . Do I lost a parameter in the setup to say from where is coming the power? what is it? other idea?

thanks. I blocked

Are you getting a failsafe message in Mission Planner HUD? I accidentally loaded a default that was for a 4S model once and it took me a minute to figure it out. Take a look at your battery failsafe setting and see if it says 10.5 or 14.x.