Step 2.Tap the blue info icon next to your current connecting Wi-Fi network. So, you can instead try the following one that some users find it useful, which is to switch your Internet network to Google Public DNS.

In this case, you iPhone fails to update is probably not because of the weak network. Change to Google's Public DNSīut you may also find that you cannot check for update on your iPhone while you can smoothly use other applications to watch videos or chat. Scroll down and tap Transfer or Reset iPhone. If there is still an error in checking for software update on your iPhone or iPad, try to reset the network settings. Disconnect the current Wi-Fi network and connect to another effective one. If the reconnection doesn't work, you may need to try other working Wi-Fi networks. Then go to Software Update and see if your device is unable to check for iOS update. If it seems that your Wi-Fi connection is weak while other devices can use it normally under the same connection, here are three ways to help you fix the network problem on your iPhone or iPad. Since iOS OTA update requires a stable and smooth network condition, you need to make sure your iPhone/iPad has a good Wi-Fi signal strength. The 'Unable to Check for Update' problem is usually due to a network issue.

Ensure a Good Network Connection for Software Update If there are yellow, red icons, or blue icons with annotations, you can wait for the servers getting back to normal and try to update once again later. Then you can attribute the iPhone update failure to other reasons and try other alternatives to fix the issue. If the icons show green, it means they are running normally.

In order to check it, pay a visit to Apple System Status web page to see whether the servers are available. So, there is possibility that iOS 16 update failure is not caused by internal reason but some external elements. If Apple servers are down, naturally your iPhone is unable to check for update. When your iPhone or iPad checks for update, it has to communicate with the Apple servers. How to Downgrade from iOS 16 Without Data Loss IPhone Won't Update to iOS 16 (8 Easy Fixes)

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