"This accessory is not made to work with the Iphone"

I dropped the iphone from a height of 3 feet, picked it up, powered on, no problem

then someone gave me a cover that looked like it would work-covered the camera and earjack, couldn't charge with the case on

and I bought a Plantronics Explorer 230 bluetooth headset works great, sound quality is very good

day after I dropped it, put the case on. The next day the message started coming up. Charged and paired the headset the one to two days later.

Popped the sim card out, put back in, no change.

IPhone works except every time it powers up the message appears.