New iPhone 3GS Emits a High-frequency Tone
A new problem has been discovered with the sound files on the brand new . The iPhone emits a high-frequency tone (around 15KHz) after playing the unlock sound, SMS sound, etc. Since most people cannot hear frequencies as high as that, it has gone unnoticed for a while. However, there is no high-pitched tone when the phone is set to vibrate. We hope that Apple will fix this issue very soon. []