Here is my problem: I currently have an iPhone 4 and the old/discontinued minimalistic black designed Bluetooth earpiece made by Apple. The phone and bluetooth earpiece works fine. However, it won't charge once plugged in with the phone. The phone charges fine but, the bluetooth earpiece battery icon doesn't show pop up as charged? Anyone using this earpiece still successfully with the iPhone 4? it worked fine on my 3G. Thanks In Advance.