It sounds like you just got it. Be sure your battery is fully charged. Its probably a "Lipo / ?". They put out very high current but drain quickly. On the larger copters, some functions will work partially or stop completely before other functions when they are low on charge. If its RTF out of the box and you just got, give the battery at least a 3 hour charge and try it again. If that doesn't work then, I would take it back for a replacement. If its not new and we need to trouble shoot, I have a lot of writing to look forward to. I fly an AH-64 attack chopper and a dual tower sky crane. I just finished repairing my crashed sky crane this morning. No more plastic for me. Let me know when you are ready. Today or whenever. We will get it done. Also. you will need a volt meter, small diameter Philips screw driver and a logic probe would be easiest to use if we need to check any PC boards. Good luck with the battery! I'm here if not. Roger