Another quad copter that had purchased within intent to get flying but ran into the same problem with older flight controllers There is a lot of parts spare parts electronics X4 flight controllers 3x ardupilot may not work X1 flight controller that I don’t no what brand it is 1x speed controllers X3 motors Lots of electrical parts which may work or not work not 100 percent sure on that Lots of spare frame parts enough to make a second copter or two with what’s here
eBay