IPhone won't shut off.

From the apple.com website - the 2nd one worked for me:

If iPhone won't turn on, or the display freezes or doesn't respond

1. Press and hold the Home button for at least six seconds, until the application you were using quits.
2. If that doesn't work, turn iPhone off and turn it on again. Press and hold the Sleep/Wake button on top of iPhone for a few seconds until a red slider appears, and then slide the slider. Then press and hold the Sleep/Wake button until the Apple logo appears.
3. If that doesn't work, reset iPhone. Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears.

You are the best!!
Thank you!

I had a similar problem. The iPhone went to a black screen and buttons wouldn't work at all, not even the shut down button. I pressed the shut down button together with the main function button (the one in the front) and it turned off. Afterwards, it turned on properly.

my iphone is currently at lock with password but when i try to unlock it it unlocks but i try entering the password it goes weird. It shows that it is touched it sounds too but it doesn't open and doesn't put either that the password is incorrect and it won't turn off it just goes sleep CAN SOMEONE HELP ME?

I had a similar problem, that is, the iPhone came up with that little circle thingy, and I figured out how to turn it off while this was happening (it was pretty scary since it was just out of the box!).

If it happens again, Hold down the home button and the sleep button at the same time and it should turn off.

Have a good one!

It's usually an issue with the logic board, so ultimately if you want to resolve it, the logic board needs to be replaced. Try to restore the iphone to exclude that it's a software issue, but if that doesn't work and If you're under warranty apple will likely give you a new one. If you're out of warranty you can attempt a self-repair if you're comfortable with opening devices like that, There are iPhone Repair guides that show you how at http://www.portatronics.com/guide. It's kind of a minor issue to take the risk of breaking things further though.

I had a similar problem with my iPhone seizing up- wouldn't go back to main screen or recognize that it was plugged in to charge- and when I tried to reset it by pushing both buttons simultaneously it just took a photo of the screen.  Just before I called Apple Care I took out my SIM card out of phone and then put it back in.  The screen unlocked temporarily and the next time I tried to reset- as prompted by Apple Care- it reset.  It did take longer than the estimated 30 seconds to get back to the standby screen- more like 1.5 minutes.  Now all seems to be fine.

@ ljw1949
u may have already fixed this by now, but mine was doing the exact same thing, until i plugged it into itunes and upgraded the software, it took about 20mins to do but eventually it worked and all has been fine since. Since then I have gone into setttings and there was an option saying when home button is pushed twice take me to the favourites list or something, so i have disabled that.

FIND YOUR SOLUTION FROM APLLE.

HERE IS YOUR SOLUTION

www.apple.com/iphone/prob237ji32/solution

Thanks

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My Iphone 3g locked up today in the "phone" menu, and no matter what I did, I couldn't turn it off or reset it. The solution: I connected it to my computer, took a backup via iTunes (ticked all the right boxes in iTunes under the iPhone icon, also took extra backup of contacts into outlook), and clicked "restore" on the summary tab. The phone then reset itself to factory settings, started up normally, and then continued to restore almost everything I had on the phone, including address book, full txt msg history, photos, bluetooth pairings etc. It even manage to restore data in some of the downloaded apps from iTunes store (such as all voice recordings in AudioMemo). The only thing I have found so far that it didn't restore, understandably, was my music, which was no problems since I only downloaded it again from my iTunes. I am really amazed at how well it worked.

THANKS!