Why does my iPhone keep restarting?

You need to do a DFU Restore,

1. Connect the device to your computer

2. Shut down the device

3. Press the Power and the Home buttons at the same time

4. After 10 seconds release the Power button but continue holding the Home button

until you see a popup from iTunes saying "iTunes has detected an iPhone in recovery mode"

5. If you have been successful your device screen will be completely black/blank (this is 'DFU Mode')

6. You can now proceed and restore to the latest firmware using iTunes

This should fix your problem

I have a son who decided to jump in the pool with his iphone 4 in his pocked. He put it in the rice for a few days and the phone turned on, but it would not charge past 4% and it kept shutting down after a few minutes. I managed to do a backup in itunes, because it will resume after the phone restarts and starts up again (you have to have a lot of patients for this) but it would not restore anything because it kept restarting. Well I ordered a new battery from ipod Battery Depot for $22.94 plus shipping of $5.96, I installed the battery then went into itunes and did a restore from backup and everythings works great now. I am a 69 year old lady, and if I can do it anybody can. Good luck.

Oh boy this could be a number of issues. I would have to start this with some questions.

What model is it?

Does it hold or show a full charge before restarting or on home screen?

Does it restart back to the home screen? Lock screen? Apple or iTunes logo?

When you plug it in does it show the battery charging or blinking?

Does it reboot only when the charger is plug in or before?

Must you leave it plugged in to function?

Based off the comments above, I would say it is one of 3 thing.

-You need a new battery which is not uncommon for iPhone 5 and below.

-You have a little bit of water damage on the logic board.

-You have a Jammed power button.

-I would normally say charger port to, but you said it was recognizing the charger.

Please send me some answers, I am happy to help!

Something else must have happened to it. What you should do is plug it into your computer, hold down the power and home button and as soon as the screen goes black just hold down the home button for up to 30 seconds, your itunes should finally give you a message and enter restore mode where you can update through itunes and fix any software issues that might be causing this glitch...

I was having a very similar problem with my ipod classic a few months back. I had no idea what the problem was and nothing really seemed to be making sense. After some extensive testing and switching out of parts, I found out that it was the hard drive cable that was causing my ipod to continuously restart itself. I think the problem occurred because I left my ipod in my car for a few days and it got excessively hot in there. I imagine your problem is something similar to this.

wat does it mean when your iphone just show the apple screen and then just reshow the apple screen but when i plug it up it on charger it stays on but when i take it off the phone goes off

using a flashlight, inspect the dock connector and headphone jack. There are liquid immersion indicators in both areas, which will turn pink/red if the device has been exposed to excessive moisture. Also look for greenish corrosion on the dock connector pins.

If the battery was the only issue, it would at least give you a low battery indication when connect to power.

If the immersion indicators are still white, try cleaning the dock connector of debris with a SOFT toothbrush and a little compressed air.

Try restoring the phone in Recovery mode to see if the problem clears itself up. You will lose your data since this doesn't allow you to make a backup of your device, but it will get the phone working again. Get the phone working to the point you can make a backup if at all possible. As far as your contacts go iPhones don't use the SIM memory; they use the internal phone memory.

woohooo - who dug that up ?? ;-)

one question to mortenskogly - are you hagar24 ??

(only to figure your initial problem out)

so i try to pick up the pieces and also try to understand the problem:

the phone was longer not in use and when you tried to charge it - it restarted always - thats a typical charging problem: the usb gives only enough power that the phone could start - but not enough to fully boot up, so the battery die within the boot process and the whole problem starts again - this happend with maaaaaany motorola phones in the past - i used a aa battery emergency charger to help normal phones to skip this point and the were able to normally charge within 1h

but the iPhone is different - there is no normal "emergency charger" for it - so i desolder the battery and charge it external, resolder it and everything works.

next point:

restore didn't work

did you tried different software versions for the restoring ?

what software did you have had and what did you try to install ?

there are some "solutions" for the 16xx errors - one that i never tried is this - maybe i should try it on my error 1604/1601 iPod touch

i am having similar issue . if i were to remove wall charger , it would just stay off and not come on . if i plug in wall charger it reboots . if i connect via usb to computer nothing comes up . i need help asap ..

As you stated the phone has been sitting around, the battery has most probably completely discharged. If its still under warranty, take it to an apple store for a replacement.

If not its pretty easy to replace your battery yourself.

Or there are companies out there that will do this for you for a fairly small fee.

The Solution is:

1- Remove the SIM card from your mobile

2- Enable the (3G & cellular Data)

3- Add the SIM card again.

4- Now .. it will working fine.

Also you can Disable the (3G & cellular Data)

hello, i have an Iphone 4G. here is a problem with me that is mujhy iphone restart when i open any social network is there anyone els have problem like that.

saadyousaf1993@gmail.com here is my email +923007078635 here is my number

I had the same problem earlier today. A while back my friend fixed my phone screen as it had broken and when he did this, he must have moved some components around without realising. This caused the phone's battery to stay on the same % until it had either been charged or restarted. Therefore I had to guess whenever it was going to go out of battery and when it did go out of battery, I would charge it up and if I went on the phone straight away, it would continue to restart so I had to leave it for a few minutes. However today I experienced something new, once my phone had gone out of battery I tried turning it on, this didn't work and when I plugged it into a charger it constantly restarted. To fix this, I held down the power and home button for about 20 seconds until the iTunes screen came up. I had iTunes ready on my computer and as soon as this happened I clicked 'restore'. ITunes began to 'extract the software' and the it told me it couldn't restore the iPhone. So the second time I did this I clicked 'update' instead. This meant that it would need to restore it after it updated it but once again it failed to restore it. I tried turning the phone on whilst plugged in after all this and it actually worked!