Today I dropped some juice on my iPhone 4 and since the iPhone's keyboard and others tones aren't working. The calling tone works however.

I keep getting the following message:

This accessory is not optimized for this phone! You may experice noise caused by cellular interference and a decrease in cellular signal strength

How can I fix this?

1 Answer 1


My girlfriend dropped her iPhone 4 in a glass of coke (it submerged completely). Afterwards, she experienced the same symptoms as you. To fix it, she put the phone in a bowl of rice, and took a blow dryer to it once or twice a day. I believe she also got some electrical contact cleaner and cleaned the connection on the bottom that you plug the USB cable into.

It took about a week, but the phone worked perfectly afterwards (and has been working perfectly ever since).


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .