Loss of BT connection

Worked fine for a couple of flights then began having serious connectivity problems. I thought it was the helicopter so I returned it to the store and got a brand new one. Same issues persist with the new one so it isnt the heli its the app or BT. Heli no longer flies for more than 5 seconds without losing BT connection and crashing to the ground. Someone needs to address this problem now as it appears Im not the only one with this problem.

Strangr419 about iSuper Heli