4. Click on âAuthorize. â Your computer will now be ready to sync your iTunes Store purchases with your iPhone. 1  If you purchased items from the iTunes Store using multiple Apple IDs, you will be required to repeat the authorization process for each Apple ID you used to purchase applications and media.onnect your iPhone to your computer using the USB cable. 6. Wait for iTunes to recognize your iPhone. Upon recognition, iTunes will display a dialog box informing you that your iPhone is synced with another iTunes library.
Answer Wiki. As long as popping/cracking your joints does not cause you pain, and you have otherwise normal healthy joints[1], you're probably ok. Gases: Your joints are lubricated with synovial fluids, which contain oxygen, nitrogen, and carbon dioxide.
This can happen in conditions where the cartilage has worn away leaving the joints themselves to rub against each other; it can also occur where fractured bones scrape across each other. Cracking and popping in the neck may be painless or could be connected to arthritis and neck pain.