Some iPhone 7, 8 users are complaining about the "No service" issue. iPhone shows a message saying 'you cannot use network until the update' while there is no iOS update available.
Some users upgraded from iOS11 to iOS12 to see if that solves the problem. But still, iPhone shows the error message 'Cellular update failed' & 'Mobile data update failed''.
Some users also experienced this issue after updating to the latest iOS. In the older version, they never faced any data failure message. Many tried by resetting network setting but that is solving the no network problem.
Some users upgraded from iOS11 to iOS12 to see if that solves the problem. But still, iPhone shows the error message 'Cellular update failed' & 'Mobile data update failed''.
Some users also experienced this issue after updating to the latest iOS. In the older version, they never faced any data failure message. Many tried by resetting network setting but that is solving the no network problem.
How to fix the “iOS 12 cellular data update failed” issue
you may try some of the steps given below. Before commencing ensure that the battery is full and there is enough network in your area.
- Put your device in airplane mode for a while and then disable that option.
- Off the cellular data for some time and then turn it on.
- Restart your device.
They accepted that there are some iPhones that are sold in some countries like China and Honkkong between September 2016 to February 2018 have some hardware issue. A component that has failed on the main logic board.
Check if you are eligible or not.
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