I'm unable to download iOS 17.1, is there any reason why?

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

• To update over the air from the phone all of these requirements must be met:
• You need at least 10 GB of free storage for iOS 16 and later or 6 GB for iOS 15 or lower; more is better
• You must be connected to a Wi-Fi network (and not a personal hotspot) unless it is an iPhone that supports cellular 5G (12, 13, 14, 15 or SE 3rd edition) and has a 5G network connection
• 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, and it may be necessary to delete any VPN apps and VPN profiles
• The phone cannot be in Airplane mode and must have a cellular data connection
• You cannot still have a beta of a previous version installed on the phone
• You cannot have a previous version that was downloaded, but not installed - go to Settings/General/iPhone Storage to look; if you find an iOS installer, delete it

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

brandie109 Said:

"I'm unable to download iOS 17.1, is there any reason why?"

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Thank you or the screenshot.

Troubleshooting iPhone Update Notifications:

Use a Computer or Cellular to Update:

Aside from WiFi or a Computer, your only other option is to use Cellular. But, that is not an option for the model you have provided: iPhone X. So, force restart iPhone and then try this once more, using a computer or Cellular...

See my User Tips:

• Update your iPhone Using a Computer - User Tip
• Use an iPhone 12 or later, that is using 5G, in order to update over Cellular - User Tip

Use of Ethernet: Note that if you cannot connect to WiFi on your computer, then consider using Ethernet. If no Ethernet port is on your computer, this is the adapter to use: The Belkin USB-C to Gigabit Ethernet Adapter - Apple