Complex sentence: Flint goes inside the meatball, finds the machine, and jams the phone into the USB port before Tim had sent him the wrong document, but Flint destroys the machine by using his Spray-On Shoes formula and it explodes.
Split into simpler sentences: Flint goes inside the meatball, finds the machine, and jams the phone into the USB port. However, Tim had sent him the wrong document, but Flint destroys the machine by using his Spray-On Shoes formula and it explodes.