Tried updating my iphone 4
i Tunes uses an authorization system to ensure only a handful of computers can access your purchased music, videos, and other content at any given time.
When you authorize your Mac or PC, you’re giving it permission to access your apps, audiobooks, books, music, movies, and other content. Restart your i Phone, i Pad or i Pod and PC could be an effective way to solve i Tunes syncing problem.
In this case, restoring your i Phone or i Pad in i Tunes.
i Tunes is a safer bet than i Cloud because it actually offloads, re-installs, and reloads your data rather than doing everything in-place and on your device.
When you Apple devices was not synced with i Tunes, or failed to be recognized by i Tunes, it could be result from following reasons: Sometimes just updating to the newest version of i Tunes is enough to resolve all syncing problems, particularly if the desktop software hasn’t been updated in a while.
By default, there will be a upgrade notification pop up once there is a new version available.
— you there's a lot you can try before giving up and calling Apple for help.
Grab your Lightning or 30-pin Dock connector — preferably a different one than you used before — plug into an outlet or USB port, and leave it for at least an hour.
If that works — if it boots up and starts working — great. If your i Phone or i Pad won't turn on, one of the first and easiest things to try is a hard reset.
Thus, I'm unable to transfer music from i Phone to my computer.
My sister have the same problem when syncing her i Pod to i Tunes.Sometimes USB ports go bad, and though it’s pretty rare it’s very easy to rule out.All you need to do is switch the USB cable from one port to another and see if it works.Whether it's really not turning on or it's just frozen on a black screen, or it really hasn't booted, a reset can help.