iPhone: Cellular Update Failed Error, Fix

Several users have said that they see the error message below on the iPhone:

Cellular Update Failed. Your iPhone cannot make and receive cellular data until it has been updated.

Cellular Update Failed

If you are seeing this error, you will not be able to make or receive phone calls, send text messages and you will not be able to connect to a cellular network or cellular data even if cellular coverage is available. You will also see a “No Service” notification in the status bar on the top of your iPhone’s screen. It is for your iPhone to maintain reliable service.

Please try each step one at a time, until your issue is resolved:

Note: Is this an iPhone 7? If so, Apple offers an iPhone 7 repair program. It is known that some iPhone 7 models may experience this problem due to faulty hardware. Check this website to learn more: https://support.apple.com/iphone-7-no-service

1. Turn on Airplane Mode and wait about a minute and then turn it off (Settings > Airplane Mode). And also on your device go to Settings > About. You may see a popup within 10 seconds if there is a carrier update. If there is, update.

2. Update your iPhone. Here is how:

  • Turn off cellular data by going to Settings > Cellular Data
  • Connect your device to a Wi-Fi network
  • Now go to Settings > General > Software Update. If there is an update available, update your phone.

3. Reinstall the SIM card on your iPhone. Here is how:

  • Turn off your phone.
  • Gently insert a small paperclip (or a SIM eject tool) into the small hole opening in the SIM tray found on the side of your iPhone. Gently push. The SIM tray will open. Remove the SIM card. Remove sim
  • Place the SIM card into the iPhone again
  • Now turn on your iPhone.

Does reinstalling the SIM fix your “No Service” problem? If not, continue.

See also: No SIM Card Installed

4. Changing some cellular settings may resolve this “Update Failed” problem. Here is how:

  •  On your iPhone, tap Settings > Cellular
  • Tap Wi-Fi Calling and turn this off (see this article if Wi-Fi calling is not working)
  • Now tap Cellular Data Options
  • And select VoLTE off.
  • Exit Settings
  • If this fixes your problem (or if this does not solve the problem), you can go back and change the settings to the originals.

5. Reset Network Settings. Please note that doing so will erase your network settings like your Wi-Fi passwords etc. You can reset network settings by going to Settings > General > Reset > Reset Network Settings.

(See also: If you want to reset network settings on Mac)

6. Complete the steps below. You may want to back up your iPhone first. The easiest way to backup is iCloud by going to Settings > Your Name > iCloud > iCloud Back Up. Following the steps below will reinstall the current iOS version:

  • Connect your iPhone to your Mac. Make sure that your Mac is running the latest version of the macOS software.
  • On your iPhone, you may see a notification alert asking you if you trust this computer. Select Trust This Computer
  • In a Finder window, your device will appear in the sidebar. Select your device.
  • Click the General tab (if you have not backed up already, you can here also backup by clicking the Back Up Now button, this backup will be saved on your computer, after the backup, proceed)
  • Command-click the Check for Update button and follow the onscreen instructions.

iPhone update

If nothing above helps you, then it is time to contact Apple. You may also want to visit an Apple store if you make a Genius bar appointment. You can also ask Apple the best support option for you via live chat.

Dr. Serhat Kurt worked as a Senior Technology Director. He holds a doctoral degree (or doctorate) from the University of Illinois at Urbana / Champaign and a master’s degree from Purdue University. Here is his LinkedIn profile.

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11 thoughts on “iPhone: Cellular Update Failed Error, Fix”

  1. Apple support has a repair program that will fix the issue for free just contact support and they just send you information on where the authorized retailers are (usually a Best Buy) Then they make you an appointment for you to bring it in to be fixed. iPhone 7’s have a hardware problem and it’s certain models that they are fixing for free. The information is on the Apple website under support “iPhone 7repair program for no service, cellular update failed “

  2. Only temporary fixes. Removing the SIM card and resetting the network settings work but don’t last. This is so frustrating!

    • I am having the same issue. It says “Error” next to cellular under settings, and “not available” under settings>general>about. Verizon says they can’t update the settings and I’ve tried everything with no success

      • I’ve had this problem sporadically for the past 3 months. Each time that I’ve gone to Verizon they just try to sell me a new phone. If you have an IPhone make an appointment with the Genius Bar to take your phone in to the Apple Store for repair. Nearest Apple Store for me is 90 miles away. I chatted online with a tech at the Apple Support website & they made arrangements for me to send it in for repair.

    • were you able to solve the probem? im having the same issue just yesterday. it’s very frustrated. it happrned after i decided to upgrade the apple software since a couple of my app were keep crashing. let me know if you’re able to fix it and how? Thanks!


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