How do you restart an iPhone 4?

Answer 1

Hold down the Lock/Power button and the home button simultaneously for a few seconds until the "slide to power off" slider bar comes up. Swipe the red slider button across the bar. The iPhone will turn off. When the screen goes dark, hold the Lock/Power button until the Apple logo shows up.

Answer 2

to restart an iphone--

1. press the home button and the sleep/wake button at the same time until the Apple logo come up...

................................or...............................

2. plug your iphone into the computer and click 'restart' in ___ iphone. (this one will take a longer time than the 1rst one)

Answer 3

On the lock button at the top of the iPhone. keep hold of it till it will give you the option to slide to turn it off. Then slide it and the iPhone will go off :) Then all you have to do it just start it up again.

Answer 4

Hold down the Lock/Power button and the home button simultaneously for a few seconds until the "slide to power off" slider bar comes up. Swipe the red slider button across the bar. The iPhone will turn off. When the screen goes dark, hold the Lock/Power button until the Apple logo shows up.

Answer 5

Hold down the lock and home buttons together simultaneously until the screen turns off. The iPhone will then reboot itself.

Answer 6

Hold both power button and home button for roughly 8-10 seconds, until screen goes black. Then release home button and continue holding power button.

Answer 7

You have a button at the top of the iphone and you hold that down until it goes off then you hold it down again and it will turn back on!

Answer 8

charge the batter first!