Updating iphone takes forever
It will remove parts of apps that it can download again.
This makes space without having to remove or relocate any of your content.
My device restarted and I was following the instructions in the setup assistant.
I was asked to enter my Apple ID and passcode to sign in.
Sometimes it takes 5 to 10 press cycles, but doing so seems to push the i OS update along and the verification process suddenly accelerates and completes.
There are quite a few new features in i OS 10.3, from security fixes through Find My Air Pods through the ability for app developers to reply to reviews.
The time it takes to download the update varies according to the size of the update and your Internet speed.
If your device still doesn't have enough space, you can use i Tunes to update your device.
If you can't connect to i Tunes, you can make room for the update by removing content on your device that you don't use.
Here are some fixes you may try if this process takes a long time.
The first thing you should do is to restart your device.