1 Reply Latest reply: Jan 18, 2014 7:28 AM by jeremy_v
AndrewG33 Level 1 Level 1 (0 points)

Hi can any one help? iPhone 4 has mobile internet but no phone signal or text ability. Had 2 SIM card changes which didn't make any difference and present SIM card has been verified as working fine. Presumably hardware or software issue. Any ideas, just out of years warrantee

iPhone 4 (8GB)
  • 1.
    jeremy_v Community Specialists Community Specialists (1,985 points)

    Hi AndrewG33,


    Thanks for visiting Apple Support Communities.


    If you are not able to make or receive calls or text messages, be sure to try all of these troubleshooting steps:

    Follow the steps below to resolve this issue. Please test after each step.

    1. Toggle airplane mode: Tap Settings > Enable Airplane Mode, wait five seconds, then turn off airplane mode.

    2. Check your phone settings:

    3. Ensure that your software is up to date:

      1. Check for a carrier settings update.
      2. Check for an iOS software update.

        Some updates may require a Wi-Fi connection.
    4. If the iPhone has a SIM card, reseat the SIM card.

    5. If the iPhone 4 or iPhone 4s is on the Verizon network, dial *228 from the iPhone and select option 2 to update the Preferred Roaming List (PRL). The PRL determines the cellular towers the phone uses for cellular service, selecting those with the best signal strength.

    6. Reset the network settings: Tap Settings > General > Reset > Reset Network Settings.

    7. Try to make or receive calls in another location.

    8. Attempt to isolate to one network band:

      • If you're having the issue on LTE, disable LTE, if possible, and try again.
      • If you're having the issue on 3G/4G, disable 3G/4G, if possible, and try again.

    9. Contact the carrier to check the following:

      • Your account is properly configured to use the specific iPhone that has the issue.
      • There are no localized service outages.
      • Your account doesn't have a billing-related block.
      • Your calls don't have errors on the carrier system.

    10. Restore the phone as new.

    If the above steps don't resolve the issue, go to an Apple Retail Store, carrier, Apple Authorized Reseller, or contact AppleCare to send the phone in for service.


    You can find these steps here:


    iPhone: Troubleshooting issues making or receiving calls



    All the best,