Accessory Not Available Problem

[reeder2]

I keep getting a message on my phone that states that the accessory is not compatible with iphone, and then its asks me if I want to switch to airplane mode. I don't know what accessory it is talking about. I haven't put anything new on my phone recently. The phone still works, but every 30 seconds this message keeps coming up. Is there a way to reset the phone? I have tried turning it on/off. Thanks

 

[The Californian]

I keep getting a message on my phone that states that the accessory is not compatible with iphone, and then its asks me if I want to switch to airplane mode. I don't know what accessory it is talking about. I haven't put anything new on my phone recently. The phone still works, but every 30 seconds this message keeps coming up. Is there a way to reset the phone? I have tried turning it on/off. Thanks

It sounds like you have water damage.

 

[FXT 1]

It sounds like you have water damage.

I just got a flippin' replacement iPhone 3G and i get this message, and before you ask, no there has not been any water damage on my phone.