Error message

[Monthmonopoly]

Keep getting error message on iPhone 4 " this accessory not optimized to work with this device". No iPod spun or audio book sound. No accessories plugged in to phone.

 

[iDude]

Hmm.. Very strange. Have you tried rebooting the phone?

 

[JohnnyApple19]

First time I've seen that... very strange.

 

[Gregoris]

tried restoring?