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How to fix iPhone cellular issue detected?

How to fix cellular issue detected


[Edited by Moderator]

iPhone 7, iOS 15

Posted on Aug 29, 2022 2:09 PM

Reply
Question marked as Top-ranking reply

Posted on Aug 29, 2022 2:23 PM

Before you do anything you must resolve the low storage issue by deleting a lot of stuff from your phone. Any troubleshooting will require at least 2 GB of free storage.


After that, see if this resolves the problem→If your iPhone or iPad shows No Service or Searching - Apple Support

And, as you have an iPhone 7, also this→iPhone 7 Repair Program for "No Service" Issues - Apple Support


The last resort:


Go to Settings/General/About and look at Modem Firmware. Is the entry blank? If it is you need to reinstall it by restoring the phone to factory settings, then restoring a backup. Back up the phone first, of course:

  1. How to back up your iPhone, iPad, and iPod touch - Apple Support
  2. Restore your iPhone, iPad, or iPod to factory settings - Apple Support - follow the instructions to restore using your computer, do not using Settings/General/Reset (which is not included in those instructions)
  3. Restore your iPhone, iPad, or iPod touch from a backup - Apple Support


If the modem firmware DOES have a value you have a hardware problem. The first step is what I just posted, but after that you need to contact Apple support using the Get Support link at the top of this page.

6 replies
Question marked as Top-ranking reply

Aug 29, 2022 2:23 PM in response to levy161

Before you do anything you must resolve the low storage issue by deleting a lot of stuff from your phone. Any troubleshooting will require at least 2 GB of free storage.


After that, see if this resolves the problem→If your iPhone or iPad shows No Service or Searching - Apple Support

And, as you have an iPhone 7, also this→iPhone 7 Repair Program for "No Service" Issues - Apple Support


The last resort:


Go to Settings/General/About and look at Modem Firmware. Is the entry blank? If it is you need to reinstall it by restoring the phone to factory settings, then restoring a backup. Back up the phone first, of course:

  1. How to back up your iPhone, iPad, and iPod touch - Apple Support
  2. Restore your iPhone, iPad, or iPod to factory settings - Apple Support - follow the instructions to restore using your computer, do not using Settings/General/Reset (which is not included in those instructions)
  3. Restore your iPhone, iPad, or iPod touch from a backup - Apple Support


If the modem firmware DOES have a value you have a hardware problem. The first step is what I just posted, but after that you need to contact Apple support using the Get Support link at the top of this page.

How to fix iPhone cellular issue detected?

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