"Why will my phone not let me get the new software update: I can’t get the iOS 15.something update and now my phone won’t let me FaceTime call people. I have no SIM card and when I try to update it says no longer connected to the internet but my connection is good and I have great internet. How can I get the update"
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For reference...
Updating an iPhone:
A. What to Update:
Update Installed Apps along with the iOS.
B. Determining if an iOS Update will Install:
How to do so...
I. Verify Compatibility:
Identify your iPhone model. The first thing that comes to mind in incompatibility being the culprit. So, confirm the model of your iPhone. If iPhone model is incompatible with iOS15 then it is because you iPhone does not meet the hardware requirements for this iOS version(s).
II. If Compatible...
1. Back Up First:
IMPORTANT: If you have an option to update, however, then be certain you backup your iPhone first. That way, you will have something to restore your iPhone from should anything go wrong with the update
then...
2. Proceed with the Update:
Use my User Tip: Update your iPhone Using a Computer - User Tip