The Apple iPhone’s touchscreen display makes for convenient operation, but when it locks up, it prevents access to the phone’s features. If your iPhone has become momentarily unresponsive, it may be indicative of a minor software glitch or a more serious hardware issue. By following standard troubleshooting steps, you may be able to fix the problem and get your iPhone up and running again. Writer Bio

How to Fix an Apple iPhone That Is Locked Up - 23