Using the iFlight Mach R5 HD is a breeze. First, make sure you've charged the battery properly. The quadcopter comes pre - tuned and pre - setup, so you don't have to worry about the technical details. The Angle - Mode is enabled by default, which helps you keep the quadcopter stable during your first flights. If you want to try Acro - Mode, just follow the instructions in the 'How to disable Angle - Mode, activate Acro - Mode' article. When it comes to maintenance, regularly check the motors, especially after crashes. The quick - swap arm assembly allows you to easily replace damaged arms. Also, clean the canopy and the camera lens to keep your view clear. If you need to restore lost tunes or updates, refer to the 'Firmware/Factory Dumps' article. And don't forget, the GoPro is not included, so if you want to use one, you'll need to get it separately.