'Unable to install update' when trying to update my iPhone 11

Make sure that your iPhone is setup to meet the following requirements before you attempt to update the iOS version over a Wi-Fi Network. Open Settings ➡️ General ➡️ Software Update: If there is an update available for your iPhone then it will be listed here. Follow the on-screen instructions to download and update your iPhone. 

• Your iPhone 11 must have a fast Wi-Fi connection. You cannot update over a cellular network or a cellular hotspot
• Ensure that you do not have beta updates activated in Settings ➡️ General ➡️ Software Update
• The iPhone can not be in Low Power mode
• The battery state of charge must be above 50%
• Your iPhone must have at least 20GB or more free storage space
• Your iPhone cannot be connected through VPN
• You should leave the phone plugged in until it finishes updating, both to assure that it remains above 50% and to keep Wi-Fi enabled (Wi-Fi turns off when the phone sleeps if not connected to power).

Axel F.

“‘Unable to install update' when trying to update my iPhone 11: My IPhone 11 IOS Version 16.6 is unable to update to the new seat version”

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Updating an iPhone:

What happens when you try using a computer? Use my User Tip: Use a Computer - User Tip. If any updates are available, they will install, sure enough.