How to repair an Hubsan H107L X4 quadcopter
Some days ago, my Hubsan H107L X4 miniquad, from Banggood, stopped working: even if I connected a fully-charged battery, it didn’t move or light. Therefore, I ordered from Banggood a flight control board (they call it receiver board) to replace the faulty one: After having opened the quadcopter frame (fixed with three screws) and having unsoldered the old board, I started…