The i Phone 4 is old and won't take on upgrades that will make it function better than it does.
I have the i Phone 4S and luckily it will get the i OS 8 update and it may just be its final update before I go for i Phone 6. Each update is bad for the i Phone 4 because the updates are made for the newer phones released by Apple.
Do not let go until the screen goes dark, and you see the Apple logo appear.
Release the button combination, and wait for the device to boot back to life.
An i Tunes restore will return the i Phone to the newest version of i OS available for the device.
As many have pointed out, the update can stall half- or a third of the way through, leaving some people to stare at gears that turn, but nothing else happens.Early on June 30, Apple officially released the newest version of their mobile platform, i OS 7.1.2, which was meant to fix some minor issues behind the scenes, with a major focus on bug fixes and security updates.Unfortunately, the update process isn’t going so smoothly for some.Whether you use i Tunes or update wirelessly, you'll have the same amount of free space on your device after you update.If you can’t update wirelessly on your i OS device, you can update manually using i Tunes on a computer that you trust.Even though most people don't think of it this way, the i Phone is a computer that fits in your hand or your pocket.