I'm unable to update my iPhone with error saying "iOS 17.5.1 failed verification"

My phone is eligible for ios 17, but whenever I try to install the update after downloading, it doesn’t allow me because I’m not connected to internet, my internet is full bars and works fine? How can I fix this


[Re-Titled By Moderator]

iPhone 12, iOS 16

Posted on Jun 9, 2024 6:37 AM

Reply
Question marked as Top-ranking reply

Posted on Jun 9, 2024 6:48 AM

Your phone is connected to the Internet, but the software package to update your phone is not. It cannot connect to the update server at Apple....and that is why you see the message about "no Internet".


Make sure that you have a good Wi-Fi connection and the battery is fully charged. We assume that your phone has plenty of free space.


There are about a dozen different reasons why this might occur, and unfortunately there are no shortcuts. You have to work your way through the Apple troubleshooting document linked below to find the real culprit.


If your iPhone or iPad won't update - Apple Support


If this looks too intimidating to you, take the phone to an authorized Apple service shop to let them handle the update. You can find a list of authorized shops in your area using this link:


Find Locations






5 replies
Question marked as Top-ranking reply

Jun 9, 2024 6:48 AM in response to Elena-F

Your phone is connected to the Internet, but the software package to update your phone is not. It cannot connect to the update server at Apple....and that is why you see the message about "no Internet".


Make sure that you have a good Wi-Fi connection and the battery is fully charged. We assume that your phone has plenty of free space.


There are about a dozen different reasons why this might occur, and unfortunately there are no shortcuts. You have to work your way through the Apple troubleshooting document linked below to find the real culprit.


If your iPhone or iPad won't update - Apple Support


If this looks too intimidating to you, take the phone to an authorized Apple service shop to let them handle the update. You can find a list of authorized shops in your area using this link:


Find Locations






This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

I'm unable to update my iPhone with error saying "iOS 17.5.1 failed verification"

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.