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My iMessage isn’t activated

My iMessage isn’t activating

Posted on Jan 4, 2025 3:55 AM

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2 replies

Jan 19, 2025 10:14 AM in response to OLA9638

iMessage Activation Failing Due to Incorrect eSIM Configuration

After dealing with persistent iMessage activation failures on my iPhone, I discovered that the root cause was an incorrect eSIM configuration on my carrier's side. If you're in the same situation, this post outlines what worked for me and how you can resolve it too.


The Problem

iMessage activation requires your iPhone to send a verification SMS to Apple's servers. If your eSIM isn’t properly set up, the SMS can't be sent, leading to repeated activation failures. In my case, the issue wasn’t with my device, but with how my carrier had assigned the eSIM to my phone.


How to Fix It

  1. Contact Your Carrier:
    • The first step is to reach out to your carrier and verify that the eSIM assigned to your phone is configured correctly in their system.
    • My carrier had to manually update the eSIM configuration for my account. This is something only they can do on their end.
  1. Reinstall the eSIM:
    • Once the carrier corrected the issue, I deleted and reinstalled the eSIM profile on my phone.
    • To do this, go to Settings > Cellular, remove the eSIM, and follow your carrier’s instructions to download the correct profile.
  1. Update Carrier Settings:
    • After the eSIM was correctly assigned, I checked for carrier updates by going to Settings > General > About. If prompted, I installed the update.
  1. Re-enable iMessage:
    • I then went to Settings > Messages and toggled iMessage off and on. Activation worked immediately after this step.

Key Takeaway

If you’ve exhausted the usual troubleshooting steps (resetting network settings, signing out of your Apple ID, etc.) and iMessage still won't activate, the problem might be with your carrier's eSIM configuration. Ensure they have assigned the correct eSIM to your phone, and then follow the steps above to complete the process.


This solution required collaboration with my carrier, but it worked perfectly once the eSIM was updated on their end. If you're dealing with this issue, I hope this helps! Feel free to share your experience or ask questions in the comments.

My iMessage isn’t activated

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