I have a 16GB 3GS phone. For the last few days, my phone is constantly giving me message that the accessory attached to my phone is not optimized for this iphone. You may experience noise or poor communication, while there is no acessory attached to it.

I have a 16GB 3GS phone since about20 months now. For the last few days, my phone is constantly giving me message that the accessory attached to my phone is not optimized for this iphone. You may experience noise or poor communication, while there is no acessory attached to it. I always used standard headphones and charging cable. Now when i recall, it started at one of the sync sessions with my itunes. I have turned my phone off and aon again and again but the message keeps coming every one or two minutes.I have also started loosing voicce on different applications like youtube etc. Also the ringer volume up and down key does not show me the small boxes increasing or decreasing on screen. The phone is playing crazy. Can someone help please
Thanks
Zia

It helped earlier but it has come back again. I don't know what to do. I tried what you said earlier but this time even this is not working either. And quite intrestingly my phone won't turn off. I turn it off, it goes off and then restarts on its own and then keep giving the same message again and again.
Could it be a charging cable, is there any chance that the cable which was working fine one day could turn to be "incompatible" with iphone the other day????????
Please help

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Hello abyjohn,
I would be concerned too if the speaker on my iPhone was not working, and if I was getting a message about the accessory not being optimized. I found an article with some steps to take when you are experiencing issues like this.
iPhone: Can't hear through the receiver or speaker
http://support.apple.com/kb/TS1630
Thank you for using Apple Support Communities.
Best,
Sheila M.

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- Try cleaning out/blowing out the headphone jack. Try inserting/removing the plug a dozen times or so.
Try the following to rule out a software problem
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Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
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Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup
- Restore to factory settings/new iPod.
- Make an appointment at the Genius Bar of an Apple store. Seems you have a bad headphone jack.
Apple Retail Store - Genius Bar
Apple will exchange your iPod for a refurbished one for this price. They do not fix yours.
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HELP!! This accessory is not optimized for this iPhone. You may experience noise interference and a decrease in cellular signal strength

Ive seen loads of people with this issue and no luck.
Basically as of yesterday, The message
This accessory is not optimized for this iPhone. You may experience noise interference and a decrease in cellular signal strength"
appeared and wont go away. I have nit used my headphones for a month so i cant think of anything that has triggered it.
Solutions I have tried..
Making sure my phone isnt on mute.
Letting the power dye and re charging.
plugging in head phones etc.
Still no luck.
Model is iPhone 3GS 16GB.

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I have a 16GB 3GS phone. For the last few days, my phone is constantly giving me message that the accessory attached to my phone is not optimized for this iphone. You may experience noise or poor communication, while there is no acessory attached to it.

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