iphone shuts down after a few minutes of non-use (after 1.1.3 update)

Your iPhone shuts completely off or goes to sleep?

The standard troubleshooting steps in order are power the iPhone off/on, Reset, Restore and if no change after and or all, call AppleCare - (800) 694-7466.

I seem to have a similar problem. This morning I was charging my iPhone on my computer through the USB and when I disconnected the battery was in full green mode. After not using it for a least 5 min, it turned off completely and it rebooted. I tried it again in the afternoon and same problem.

I updated my software to the new iPhone version could that be part of the problem?

I'm having the same problem. The phone shuts down after a few minutes of non-use. I did find that if I left it plugged in to a charger all day, it did not shut down. I'll probably try and reformat it tonight. has anyone else tried yet?

I'm not sure how to provide the same answer any differently.

Follow the troubleshooting steps in the order provided in my previous post with the last being calling AppleCare.

If you can let me know what they told you. I've done the back-up, restore.. etc.. Tech Support couldn't help me either.

The Apple store is 2 hrs away and I don't want to drive out there if they don't have a good solution.

Is anyone else having the same problem?

i am having the same problem... i turned the auto-lock off so my phone never sleeps and in return it runs my battery down even faster and calls people on accident... even more odd is that the car charger i bought from at&t has alweays worked fine until the 1.1.3 update and it all of the sudden started sayin that this accessory wasn't designed for an iphone and that i should put it in airplane mode so i wouldn't get interference... i have restored several times and nothing helps... i have been all over the net looking for a fix but finally had to call apple and they are sending me a loaner and i have to ship mine back to them for repair... should be here tomorrow (i hope)... beware there is a $30 loaner phone fee... as bad as it sounds i'm glad to hear that i'm not the only one with this problem...

Heya all!
I'm having the same problem. Has this been solved somehow?
Thanks for lending a helping hand!

for s's and g's try taking out the sim and putting it back in, on an old phone i had a crashing issue like that and it was solved.

now for the just shutting off and not reboting itself... tech support
-matt

Same problem after 1.1.4 update. Any way of solving it without going to an Apple Store. I am in Spain and here there aren't.

Please help me, I have already tried everything...

Just to say I had the same problem after 1.1.4 update too. Removing the SIM card brought the phone to life, but putting it back in again made it go the same way it was. What I did was when the SIM first pops out and I get life, I held down the power button and turned the phone off. The put the SIM back and powered up the phone. I only did this 5 minutes ago but so far it's still working.

It might help you.

Think I've solved it:

Steps:

1. Turn off your iPhone by pressing at the same time power and home button (don't use the slider, keep pressing both buttons till screen collapses).

2. Wait about 30 seconds with your iPhone off.

3. Turn it back on (I had to do it with both buttons pressed).

With this method iPhone has been on without turning off by itself for about 8 hours. This morning it had turned off again, but that's much more than 20 seconds and I had synced it already, don't know if this was the reason why it turned off.

Thanks everyone for the help.