How to Fix iPhone 3GS Keeps Restarting Itself Every 2 Minutes after iOS 5.0.1 Update

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Are you experiencing this weird issue after updating your iPhone 3GS to iOS 5.0.1? For some reason it has nothing to do with the hardware. Read how to fix it below.

What’s the deal with this problem anyway? See the email below which we received from a customer to understand better:

“It was fine when I was using iOS 5, but it started restarting itself every 2 minutes after a few weeks of iOS 5.0.1. I restored it as a new iPhone and started from the scratch a few days ago, but this morning when I turned on my phone after switching it off for the night, it started doing the every-2-minute-must-restart thing. Help me before I smash the phone into pieces!”

Editor's note: learn more by reading our ebook on starting your own iPhone repair & unlock business

Thankfully, there’s a quick and easy fix to this issue. Try these 3 steps fix below:

1. Eject or remove the SIM card from your iPhone.

2. Go to Settings > General > Network and enable 3G and Cellular Data (or toggle these if they are already enabled)

3. Insert your SIM card again.

Done! The problem should be fixed by now.

If the above didn’t fix this issue, try to do a full restore and set it up as a new iPhone. Remember to use custom firmware to preserve your baseband if you rely on an unlock.

I’m not sure if this is affecting iOS 5.1 but hopefully this “bug” had been fixed. If your iPhone 3GS reboots itself every 2-3 minutes after you tried flashing it with an iPad baseband, this is definitely a hardware issue. You can try the fix here.

Related Post: Fix iPhone 3GS Endless Reboot or Sudden Shut Down After Replacing New Battery

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Comments & Discussion

  1. Hello guys! I have almost the same problem, after updating my 3GS to 6.0.2 only the deference my iPhone is continuously keep restarting until the battery dies. I can't do anything whit it because it is just restarting and restarting…and.
    Don't even try to tell me to press this and that buttons for couple of seconds,…etc I got this itunes message when connecting the phone to the computer: "We're sorry, we are unable to connect with your activation at this time." So again the phone does not respond to anything, just restarting after the 6.0.2 update untill the battery dies.
    I went to the apple store to ask apple genius, but no luck. Now I looking for an Apple genius outside the apple store… anyone? Please Help! :)


    If your JAILBROKEN iphone 3GS keeps rebooting and doesn't come up untill the battery runs

    down, then do the following:

    1. Get EVASION on your PC,
    2. Connect your iphone to your PC with USB cable and wait for sometimes; untill the phone

    comes on and starts rebooting,
    3. Start evasion and wait for it to detect the rebooting phone. Then it will display :

    "Phone already jailbroken, it is not advisable to jailbreak again"
    4. Ignore the message and wait for sometimes,
    5. When the JAILBREAK button becomes highlighted, click it and wait for jailbreak to revive

    your phone,
    6. After a relatively long time, evasion will reboot your phone by switching it off and on
    7. When your phone switches on, it will reboot and display your HOME SCREEN.
    8. Disconnect the iphone at that stage, SWITCH IT OFF AND SWITCH IT ON,
    9. When the iphone comes up, it will automatically install cydia and the phone and after

    somestimes display the HOME SCREEN
    10. Congrats! You can continue using your precious phone.

    NB! This procedure is SPECIFICALLY for iphones that develope incessant REBOOT as a result

    of DELETING SYSTEM APPLICATION(S) FROM CYDIA! However, I hope it will work for other reboot

    problems also.

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