I also had the same error message. Along with erratic flight 3'-5' off the ground. I had the props extended prior to lift off so I'm not sure what happened as it flew fine afterwards.
So far I'm not sure I'm pleased with my purchase.
Pros:
-Significantly quieter (I operate mostly on golf courses around other golfers, so this is a HUGE plus)
-Quicker set up and take down before and after flights.
-Seems to be a bit more responsive
-Esthetics (the carbon fiber looks pretty nice with the carbon fiber arms)
-Solid build, no more red prop chatter.
Cons:
-Required quite a bit of modification to my GPC landing mode case.
-The controller has to be out of the case prior to putting the
I2 into the case due to obstruction from the cross bar on the front of the controller.
-Price
-Uncertainty of wear and tear on the motors due not being factory.
-Instability upon take off (2 out of 6 lift offs)
Again, I have very mixed feelings about this purchase. If it weren't for the fact that I almost wrecked my
I2 on first take off, I would be a huge advocate. But with those in mind I'm thinking about taking them off. Any insights would be greatly appreciated.