iOS 15.5 Dose not Download and install

You must have a stable Wi-Fi connection.

Or connect to a PC with the latest version of iTunes installed.

Charge the battery to 50% or higher.

Turn off Battery saving mode.

Don't use a Hotspot.

Don't use VPN.

And make sure you have enough free space.

Omsutariya Said:

"iOS 15.5 Dose not Download and install"

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Thank you for the screenshot.

Update Using a Computer:

Apparently, there is an error connecting to Apple's servers. So, try updating through use of a computer.

• Use my User Tip:  Update your iPhone Using a Computer - User Tip
• IMPORTANT: 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