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aiCa_n18 Author

Level 1

5 points

15.3 Update error

I continue to get the unable to download error message for iOS 15.3 update (8 Plus). I have 8GB of available storage. I’ve done the usual suggestions to no avail...

iPhone 8 Plus, iOS 15

Posted on Jan 31, 2022 8:04 AM

Top-ranking reply

Lawrence Finch

Level 10

212,534 points

Posted on Jan 31, 2022 8:10 AM

To update over the air from the phone all of these requirements must be met:

You need at least 6 GB of free storage
You must be connected to a Wi-Fi network (and not a personal hotspot)
The phone must be charged to at least 50%, and preferably plugged in so it stays above 50% during the update
The phone must not be in Low Power Mode
The phone must not be connected through VPN
The phone cannot be in Airplane mode
You cannot still have a beta version installed on the phone

If you can't meet all of them you can still update using your computer.

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15.3 Update error

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