Dji rm 510 controller,

Hi I bought a mini 3 pro off Facebook,and have since found out it is bound to another account.I have tried contacting the seller, but no response.I was wondering if I bought a rm510 controller, could I download litchi pilot onto the controller and bypass DJI fly? Otherwise think I’m a bit limited? Thank you.

Unlikely to work, Litchi can’t bypass binding/activation etc