Hi, after storing away my mavic for a few months, I pulled it out again, and realized the charger was dead. I proceeded to charge it, and it won't charge or turn on. The LED display is completely dead. I am pretty sure the microusb part on the controller is messed up. How much would this cost to send somewhere for repair? Also. Am I able to buy a used controller, and pair it with my drone? Not sure which is cheaper.