Recharge iPhone
Connect iPhone to a high-power USB port, such as the one on your computer, or use your iPhone AC adapter. If either of these screens are present, keep iPhone connected so it continues charging.
- Don’t use the USB port on your keyboard because it is a low-power port and iPhone will not charge.
- If you see the red part of the battery image flash three times and then the screen goes black, it means that iPhone is not receiving power to charge.
- If the iPhone battery is extremely low on power, the display may be blank for up to two minutes before one of the low-battery images appears.
Restart iPhone
To restart iPhone, first turn iPhone off by pressing and holding the Sleep/Wake button until a red slider appears. Slide your finger across the slider and iPhone will turn off after a few moments.
Next, turn iPhone on by pressing and holding the Sleep/Wake button until the Apple logo appears.
Update software
Updating your iPhone and iTunes software may solve your issue.
Make sure you are using the latest version of iTunes.
Next, connect iPhone. In the left column under Devices, click on your iPhone. Click on Check for Update in the Summary tab, then follow the instructions.
Remove content
If iPhone is not working as expected, it may be due to some of the content synced to it. Try selectively removing recently added content or any content that is not working as expected, such as applications, contacts, calendars, songs, photos, videos, or podcasts.
To remove content, connect iPhone by USB and use iTunes to change the sync settings. In the left column under Devices, click on your iPhone, then select each tab to change what content is synced. When you are finished, click Apply in the lower right corner of the screen.
If an application isn’t working as expected, try removing the application and reinstalling from the iTunes store. For more information, see this article.
Restore iPhone
To restore your iPhone, first make sure you are using the latest version of iTunes.
Next, connect iPhone. In the left column under Devices, click on your iPhone, then click on Restore in the Summary tab.
For more information about backing up, updating, and restoring your iPhone software, see this article.
