I i recently got used a 3dr solo with no props or controller or charger and am waiting to see if there are better options for the unit then the oem parts . i have not even paired it to the app or even don'e anything but turned it on it turns to 4 green lights then to two red and two white... is there anything i should be aware of when buying a used 3dr that is not easy to point out thats wrong with it for a new user ..If anyone can point me in the direction to the best possible upgrades available for the unit it would be greatly appreciated or if you have spare parts or upgrades for sale ..
thanks
thanks