Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 16 or 32 GB capacity / black or white plastic back.

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Why does my iPhone keeps shutting down many times a day?

I have a 16GB 3GS that is a little over a year old. For the past two weeks it keeps turning it self off. I have to hold the power button to turn it back on. Some days it will not do it at all, but other days if will not stay on more then a few minutes. I bought a new battery from Ifixit, thinking that is the battery was shot. But this did not resolve the issue. What next step should I take? Can it be the pin connector, or is this a problem that I can fix. I do not want to upgrade to the iPhone 4, I want to wait until next year to get a newer model. Please help me if anyone can. Thank you in advance.

Answered! View the answer I have this problem too

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Try calling Apple... After all they created the phone!


I Have the same problem as yours in 3GS happed after I updated the new OS4.1 software. I changed the battery! no luck! I rest all to manufacture, still no luck, Hold both buttons five second till shut down, still no luck! So what else I can do?

The phone out of warranty!

:( :(

Please help!



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sounds like a contact issue to me - but it's hard to tell what part fails.

maybe you should run a few tests - try to find out in wich situations the phone shuts down.

mostly phones have those problems when it's warm or the get bent and so on (everything that can happen when a pone is in the pocket)

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I recently had the same problems with my 3GS after updating to the OS4.1 I even came up with a 1604 error and thought I bricked my phone. The solution for my phone was to return to the older firmware. I accomplished this by downloading an older firmware from then I did the following:

Turn off iPhone – Hold down the Sleep/Wake button for a few seconds until the red slider appears, then slide the red slider

Press and hold down the Home button until a yellow triangle with a text which says Please Connect to iTunes appears

Plug the iPhone into my PC (windows)

I already had Itunes running so make sure its on.

iTunes prompted with a message that said iTunes has detected an iPhone in recovery mode. Click OK.

You will be taken to the iPhone pane. Hold down the Shift key (in Windows ) and then click on Restore

The step above will open up a window to allow you to select the firmware software file you would like to use to restore the iPhone. Browse through the folders (Located in my case under C:\Documents and Settings\Oldturkey\Application Data\Apple Computer\iTunes\iPhone Software Updates remember that this is a hidden folder and you may have to unhide it to find it.

Select the old firmware file that you downloaded i.e.iPhone2,1_3.8.1_8B117_Restore.ipsw.

Wait for the full restoration process to complete, and the iPhone will be restored to state based on firmware file you selected.

It does sound complicated but is really not that bad. Hope I got all the steps outlined to follow this. I do not know if this will resolve the issues that you are having with your phone. Also remember with a restore it is very likely that you will loose all your info and music on your phone.Best answer I can give you and I am no expert in this :)

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thanks sir for ur detailed summary but that $^!@ dont work i legit sat here and played and did everything i ^^#!^#% could n this #$*! still isnt working and ive been ##&!*!$ sitting here for over 2 hours

$### APPLE


Sorry to hear that, but may be instead of getting frustrated and all, you could use the "Ask a question" button. Ask your own question that is specific to your device and give more information about your problem. Thank you and have a nice day.


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I'm having the same problem with it, but it happened when I have insert the sim card into then it Amy will have this problem shut down and restart by itself. This that problem with the sim card slot?

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martinjenn97 will be eternally grateful.
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