iPhone error when trying to update to iOS 16.1.1

Hi Mazamy,

Thanks for posting here in Apple Support Communities. Are you attempting to update your iPhone over-the-air using Wi-Fi? If so, you can try removing the update and downloading it again. See: If your iPhone or iPad won't update

Remove and download the update again

If you still can't install the latest version of iOS or iPadOS, try downloading the update again:

1. Go to Settings > General > [Device name] Storage.

2. Find the update in the list of apps.

3. Tap the update, then tap Delete Update.

4. Go to Settings > General > Software Update and download the latest update.

If you don't see the update in the list of apps or if the issue happens again, you need to update your device with your computer:

Update your device using a Mac with macOS Catalina or later

Update your device using a Mac with macOS Mojave or earlier, or a Windows PC

Following those steps should resolve this issue for you.

Kind regards.