Original mavic radio, completely dead. Plug it in to charge it, display says it’s at 50% so I unplug and immediately starts a constant loud beep. No input on the sticks, no buttons being pressed, just immediate and constant beep. The only way to get the beep to stop is to plug it back into the wall charger. I tried connecting it to a phone, pressing all manner of button combinations, etc, but if it is unplugged from a power source it goes to full on beep mode. What is happening here?

Also, it will not turn on, beep only.

Hello there Manchild. I am sorry for the trouble this has caused and thank you for reaching out. Kindly please try to calibrate the said DJI remote controller to see if the issue will persists. In addition kindly please post a short sample video showing the said issue for us to see and can assist you further? Thank you.