There may be a case that you’re one of those who got the “No Service” message after unlocking your iPhone 4, 4S, 5, 5S, 5C, SE, 6S, 6, 6+, 7 or 3GS through the factory unlock method. Before you go ahead and press the panic button, we’ve some news for you. There is no need to worry as we’re making this exclusive post just to carter to your needs.

iPhone No Service

iPhone No Service Error Fix

Most of the users who face this problem are those with iPhone 3GS on the famous iPad baseband. The problem may also be faced if you used utlrasn0w unlock for the purpose. Other instances when the No service message appears is after the activation and deactivation of the device through SAM & Redsn0w, after restoration and update of the device or even in the case you tried to jailbreak.

iPhone 4 No Service

Contrary to what people may be saying, it’s not the method of unlocking that’s the main culprit here. The problem is that the SIM card you’re using is not compatible.

Your phone is locked to the AT&T or another carrier; any other SIM card is not compatible. If you’re seeing the No Service, there can be variety of reasons why this happened.

Steps To Fix No Service iPhone 4 4S 5 5S 6 6+ 6s

Step 1: First of all, place the SIM card that’s not compatible. Next, head over to General -> Reset -> Reset Network Settings. Next, create a backup of all important files and folders before you try to reset the network Settings because the data may get erased.

No Service iPhone 5

Step 2: When you’re in Settings, AirPlane mode will be visible to you. This can also be used to fix the issue being faced by you. What you should do in this case is insert the uncompatible SIM and toggle the Airplane mode on and off several times before signals are picked again.

iPhone 4s No Service

Step 3: You can also try taking out the SIM card while your device is on and then switch it off. Now place the SIM again and turn on the iPhone. You can also try the other way around.

Step 4: Head over to Settings > General > Cellular/Network and toggle on Cellular Data, Data Roaming, Enable 3G and wait for the device to pick signals. If the options are already toggled, switch of the device and wait. (There are few opinions that you just need to restart the iPhone using two buttons and you’ll get service easily).

Step 5: The No Service problem being suffered from SAMPrefs activation and deactivation or redsn0w can also be fixed. In this case, follow the steps below:

No service iPhone 5c

  • Place a SIM card other than your original sim and connect the device to iTunes with a USB connector.
  • When the device is detected by iTunes, do a backup and then choose Restore. (Try to restore without keeping hold of Shift/Option, or place the iPhone in DFU mode to do so).
  • After restoration is done, two options will be visible to you; Restore from a backup and Setup iPhone as a new phone. Choose the second option.
  • After selecting the second option, activation steps need to be passed. You can do it with a non-compatible SIM and wait for Signals to come. (if nothing happens, repeat the steps).

Step 6: There are many iPhone with iPad baseband 06.15.00 through ultrasn0w 1.2.8 unlock. This could be the reason for issue as well. First go to Settings -> General -> About -> Modem firmware. If the baseband is 06.15.00, it needs to be downgraded. This is how it’s done:

  • Download redsn0w on Windows and run as administrator.
  • Enter DFU mode: Go to Extras > Just Boot and follow on-screen instructions in redsn0w to proceed.
  • Now launch iTunes and restore the device.
  • Enter DFU mode again.
  • Download the latest iOS firmware version.
  • Go to Extras > Select IPSW in Redsn0w and select the iOS file downloaded in previous step.
  • Head over to the main window of redsn0w and select jailbreak.
  • Select downgrade from iPad baseband and untick Install Cydia and select Next. That’s it.

Step 7: You should order the SIM card rather than try to cut it yourself if you want to SIM card of the other carrier.

Step 8: It can also be the case the in your area you want to use isn’t good. If that’s the case, just contact the carrier and let them no.

Step 9: Another possible reason for the No Service error on your factory unlocked iPhone is the device’s antenna. It could be the signals are not being captured to antenna issues.

No service fix iphone

That’s about it. This is all we have for you today and you can try out different ways. We hope that one of them works for you. Just keep in mind, unlocking is not the issue for No service message. Otherwise, the iPhone won’t even be activated. Did you fix your iPhone No Service error?

  • Rondell Williams

    i have a iphone 4s if i search for service manualy it sees the network but it doesnt registar on it

  • Murali Krishna

    oh yeah which option u tried?

  • marvin

    having the same problem did everything, even call help over the phone and no luck, looking like a hardware problem

  • Shailu soni

    I am successfully BYPASS my iphone 4 But now i find problem while searching the network It always says “NO SERVICE”. what can do for fix my problem. please help me


    hi this is praveen my iphone 5s-7.1 soft ware is updated but sim is not valid what problem. my iphone 5s But now i find problem while searching the network It always says “NO SERVICE”. what can do for fix my problem. please help me &

  • Iphoneuser

    It works on my iphone 4 thanks so much

  • Iphoneuser

    Just follow all from steo 1 to step 5 and then turn off your phone after 15 to 20 seconds turn it on again then press accept after 5 seconds dial 112 just wait until the call is finish go to settings then airplane mode turn it on wait until the NO SIM pop up and turn off airplane mode.and thats it…do it everytime you dont have signal…goodluck.

  • Aadil

    what to do after hacktivating iphone 4 runnig on ios 7.0.4 there is a no service error

  • mouhssine

    what to do invalid sim carrier not available iphone 4 ios 7.1.2 imei 012430001019350

  • Carlos

    Okay I jailbroke my iPhone 4s at iOS 8.1 the I did a restore to unjailbreak it but the. Suddenly in the setup my phone number became a third party option. And the main default number said ” your phone number”. I need help as soon as I can! Please

  • nilokao

    yes i did! i reset my network setting and it fixed! tnx

  • Joseph OSEI MENSAH

    my iphone 4s ios 7.1.1 has been unlocked with SAM with the network bar full but i cant make calls wit it. pls help

  • susan

    Our cousin, in the States, sent my daughter an iphone 4. There isn’t a SIM card there isn’t even a tray or an opening for a SIM card (my cousin said it doesn’t use one). How can we transfer my daughter’s phone number and other information to the iphone 4, so she can use it?

  • Harti

    It’s not iPhone, it’s iPod

  • UG Jobline

    your iphone 4 looks to be locked on a network

  • Agus astika

    Maybe something wrong on hardware
    Because I’m has restored my iPhone and no anything happens