FIX for "This accessory is not optimized for this iphone"

Recently with an upgrade to iOS 4.1 (or maybe a coincidence), my lady’s iPhone keeps popping up with

“This accessory is not optimized for this iphone”

After much Googling, I ended up having to troll through Apple’s forum before coming across this thread which had the solution to my problem. I’ve listed the possible fixes to save you the trouble of scrolling through Apple’s forum.

The issue appears to be caused by dirt or water in the dock port which confuses the iPhone’s device detection via currents on the pins of the dock port (see lady ada’s post).

So heres some possible fixes

1. 1. Look in the dock port and remove any dirt, lint.. etc anything that shouldn’t be there. You may want to use an air duster to blow it out.

2. 2. If it got wet or was near a water source when the error started appearing, try burying it in rice to dry out the moisture and hope that it has not caused any permanent damage.

3. 3. If you get this error only when connected to your iPhone dock or cable, check the peripheral. Test on the dock or cable with another iPhone.

If it still doesn’t work, you may have damaged the pins, possibly with moisture. You need to seek professional help.