Upload ios

You should have mentioned which iPhone you have and which iOS version is currently running on it. You will need an iPhone 8 or a newer model to install iOS 16.

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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 must have a fast Wi-Fi connection; you cannot update over cellular data or a cellular hotspot
• The iPhone can not be in Low Power mode
• The battery state of charge must be above 50%
• Your iPhone must have at least 8GB 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.

Well, you have asked us to guess your iPhone model and its current version.

If your iPhone is new enough and you have an appropriate cellular plan, you may be able to use 5G cellular to accomplish what you are trying to do. You may certainly visit an Apple Store and seek assistance there.