### iOS 26 iMessage Activation Challenges: A Troubleshooting Guide
Following the launch of iOS 26 last month, numerous iPhone users have faced challenges with iMessage activation using their phone numbers. Apple has recognized this issue and has released a support document outlining the problem along with a possible remedy.
#### Grasping the Issue
Apple characterizes the problem in the following manner:
> “Upon updating to iOS 26, you may find yourself unable to activate iMessage with your phone number if you possess an inactive SIM that shares the same phone number as your active SIM.”
Users impacted by this dilemma might encounter several complications, such as:
– iMessages not sending, marked by a “Not Delivered” notification.
– Text messages solely being sent and received as SMS or RCS, shown by a green bubble.
– Messages being dispatched through an email address rather than a phone number.
– The identical phone number showing up twice under Settings > Apps > Messages > Send & Receive.
#### Source of the Problem
As noted by Apple, the trouble emerges when users have an active eSIM that carries the same number as their working physical SIM. This discrepancy can hinder the correct activation of iMessage.
#### Steps to Fix the Problem
Apple has laid out a step-by-step instruction set to assist users in resolving the iMessage activation challenge:
1. Launch the **Settings** app and select **Cellular**.
2. If two SIMs with the same phone number appear, locate the inactive one. If it is a physical SIM, remove it. If it is an eSIM, select **Delete eSIM** to eliminate the inactive eSIM.
3. Once the inactive SIM is removed, navigate back to the **Settings** app and select **Apps**.
4. Choose **Messages**.
5. Click on **Send & Receive**.
6. Select the displayed phone number to activate iMessage.
#### Conclusion
Should you have faced complications with iMessage activation following the update to iOS 26, adhering to Apple’s instructions may assist in rectifying the issue. Users are invited to share their experiences and indicate whether the suggested solution was effective in the comments section.
For additional information, please consult the original support document from Apple.
