Last week I took possession of a disassembled Inspire 1, just the drone. The advert said that one arm was broken, otherwise the drone was complete. On inspection, yes there was a completely broken arm, but it did not belong to the rest of the drone in the case. It was green/brown camo in colour, the rest black, patterned carbon fibre. There were two other unbroken arms complete with motors. Unfortunately both were RH arms. I did have a LH arm was was able to full assemble the drone. All back together I added a battery, a controller and my i-phone for the DJIGo App. Everything came on and the controller connected. The drone was in he landing gear down position, so I wiggled the RH button on the controller (holding my breath), the body lowered to the table top and stopped. Wiggle again and the body rose up. Yes! I added a camera and got video feed on my phone. The camera calibrated. With no props, I pressed the automatic take-off button and slid the on screen take off button to the right. Up came the dreaded "ESC Error" message. Then I remembered that the LH arm had come off of another Inspire 1 with an ESC error. When I bought that drone, the seller had said that he thought that the problem lay with the front right (M4) motor as you look at the drone. I changed that motor, it had signs of overheating, things were a bit crisp and smelly. That didn't resolve the problem, so I replaced the whole arm and motors. The removed arm was the one I had now used. I had a set of 4 motors and ESC boards. I swapped M4 out, no change, so I swapped M3 out (it showed what I think was water or condensation damage, blue, scaly deposits), no "ESC Error" message. So now everything works on the assembled drone. It flies and responds beautifully. I've posted because on this occasion the troublesome "ESC Error" was resolved by replacing the damaged ESC boards. There is a maiden flight video here to bore you with.