"This accessory is not optimized for this iphone" help please

[catherine89]

my phone has always been fine and i have had no problems with it, but today it was fine then a message popped up saying "This accessory is not optimized for this iphone- you may experience noise caused by celluar interferrance and decrease in celluar signal strength", but i havent linked it up with any accessories, and now when i try to call people i caant hear any thing unless my phone is on speaker and all other sound is totally gone. I have tried syncing it on the computer and have restarted it several times, can anyone help me please?
Thank you,
Catherine

 

[magdalenka82]

This accessory is not optimized for this iphone?

Hi,
Did you find out what the problem is? I am getting the same message and I don't use any other accessories than the USB cable that came with the phone, which has always worked fine!
Thanks for your help.

 

[dmk005]

same problem here

Apple wants me to pay for support to troubleshoot. Ugh...

 

[dmk005]

I took my iPhone 3GS to an Apple Store last night where they replaced it saying that the when the message shows when there is no accessory attached it is a sign of the hardware failing. Luckily, I still had Applecare and it was replaced.