Hi all, a friend of mine has an iphone unlocked with anysim.
In the last days he 's receiving the following message....with no reason and completely out of the blue.

"This accessory is not made to work with iPhone

Would you like to turn on Airplane Mode to reduce audio interference (you will not be able to make or receive calls)?

Yes / No"


I've to say that no new accessory was attached and the iPhone has been with him-rowking- for over 5 months

any idea?
tks