Battery won't charge; sometimes not detectedWhen connecting (known working) magsafe supply, magsafe LED is briefly orange, then turns green. Battery is either "present=n...
Answer to: Why is my iPhone 4 not charging.?If the battery is too low it will not show up on your computer until the battery is more charged and the phone can startup. Iphone will not charge with just any USB charger -- the Apple USB chargers have some special features that the iphone checks to make sure it can charge. It will be best to attempt to charge for awhile with the supplied Apple charger (and cable) before deciding there is a problem.