iMessage Activation Failed Error & Slide Over Window Size

Hi all,


I bought a 5th generation iPad and I get ‘’iMessage Activation Error’’ and cannot clear this error message… Even if I press iMessage, I cannot cancel the error message only way is turning off the device.


And my other question is, why we cannot change the scale of slide over window? I don’t think it’s a hard operation for an OS…

iPad Pro, iPadOS 14

Posted on May 28, 2021 2:37 AM

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Question marked as Top-ranking reply

Posted on Jun 1, 2021 7:17 AM

First, iMassage activation issues:

If you encounter an error when trying to activate iMessage or FaceTime – Apple Support


The Slide-over view has a fixed aspect ratio; this cannot be altered. By contrast, a Split view window can be proportioned as 25/50/75% of the relative width of the screen. iPadOS does not provide any other means by which the relative windows can be resized.


Apple does invite constructive feedback, comments and feature requests via its product feedback pages:

Feedback - iPad - Apple

4 replies
Question marked as Top-ranking reply

Jun 1, 2021 7:17 AM in response to MrSahin

First, iMassage activation issues:

If you encounter an error when trying to activate iMessage or FaceTime – Apple Support


The Slide-over view has a fixed aspect ratio; this cannot be altered. By contrast, a Split view window can be proportioned as 25/50/75% of the relative width of the screen. iPadOS does not provide any other means by which the relative windows can be resized.


Apple does invite constructive feedback, comments and feature requests via its product feedback pages:

Feedback - iPad - Apple

May 29, 2021 7:38 AM in response to MrSahin

Hey there, and welcome to Apple Support Communities, MrSahin!


From our understanding, when using your iPad, you’re getting a message stating there was an error activating iMessage. We can certainly understand your concern and can help provide some insight.


To get started, can you tell us if this happens as soon as you turn the iPad on or after taking certain steps? Also, is the iPad currently connected to Wi-Fi?


We look forward to hearing from you!

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iMessage Activation Failed Error & Slide Over Window Size

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