I’m trying to update my cellular Dates on my iPhone how do I do that I recently had my screen repaired and every since I couldn’t make calls are you telling me I need an update

I recently had my screen repaired and now I cannot make calls or receive calls on my iPhone it says my iPhone needs to update cellular data how do I go about that

iPhone XR, iOS 14

Posted on Aug 12, 2022 9:33 AM

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Question marked as Top-ranking reply

Posted on Aug 12, 2022 9:42 AM

Who repaired your screen? There’s a good chance they broke something. But you can try this:


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 probably 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.

2 replies
Question marked as Top-ranking reply

Aug 12, 2022 9:42 AM in response to TiffCandy38

Who repaired your screen? There’s a good chance they broke something. But you can try this:


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 probably 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.

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I’m trying to update my cellular Dates on my iPhone how do I do that I recently had my screen repaired and every since I couldn’t make calls are you telling me I need an update

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