iOS 17.1.2 can't be installed

Yes it does.

Make sure your iPad has no VPN running. If it does, temporarily, disable it.

Make sure your iPad is not running any test, Beta iOS/iPadOS software. If it is you'll need to remove/uninstall it.

The official Apple released OS upgrade/update version/s will not be present or be able to be installed whilst Apple OS Beta software installations are currently active and running.

Your iPad is too far behind in iOS/iPadOS upgrades/updates.

If you have access to a full computer, like a Mac or Windows PC, try either using the Finder on a Mac that has the newest macOS Catalina, or later macOS, installed OR with an older Mac with an older Mac OS, download and install the latest iTunes version ( or latest iTunes for Windows PC ), make sure the Mac or Windows PC is connected to the Internet, connect your iPad by the USB charge cable to the computer and let the iTunes application upgrade/update that iPad model, using the iTunes Software Update feature, to its current, maximum OS of iOS 12.5.7/iPadOS 15.8/iPadOS 16.7.2 or iPadOS 17. 1.2, depending on your year and model of iPad.

A 2013 iPad Air 1st gen, iPad Mini 2nd gen and 2014 iPad Mini 3 can ONLY be updated to iOS 12.5.7.

A 2014 iPad Air 2 and a 2015 iPad Mini 4 can ONLY be upgraded to iPadOS 15.8

iPad models from 2015 can be upgraded to the latest iPadOS 16.7.2

Any iPad from 2017 and later/newer can be upgraded to the latest version of iPadOS 17, except the 2017 5th gen iPad, which CAN ONLY be upgraded/updated to the latest iPadOS 16.7.2.

Make sure your iPad is, at least, charged to 50% or greater to attempt this.

Also, make sure your iPad has, at least, between 6-8 GBs of free internal data storage space for downloading and installing a major iOS/iPadOS upgrade.

Make sure your desktop/laptop computer has plenty of internal drive storage space, also.

Also, make sure to do a backup of your iPad's data, prior to upgrading/updating.

Backup to Apple iCloud and/or a full Mac or Windows PC using the same iTunes app OR, if a newer Mac running macOS Catalina, or later, making a backup using the macOS Finder app.

How to back up your iPhone, iPad, and iPod touch - Apple Support

If NO access to a Mac or Windows computer, you will have to seek help from a good friend or family member, with a full Mac or Windows PC, to help you out

OR

Search online to locate and call contact your nearest, “local” Apple Store location to try/attempt to make an appointment to get your Apple iPad upgraded/updated to its latest iPadOS 15 version.

OR, alternatively, use the “Support” link, at the upper right hand corner of every Apple Support Community Webpage to attempt to schedule an appointment with your nearest Apple Store location.

Apple Store employees will be glad to help/assist you.

Best of Luck to You!

I also have iOS 17.1.2 on my iPad and also XS iPhone and neither are updating.

My phone just shows “Temporarily unavailable”

I would have hoped that Apple should have sent us an update sharing any issues that have been encountered.

IOS 17.1.2 can’t be installed in my iPhone mini12

If your iPad is capable of update to a more recent version of iOS/iPadOS than is currently installed, these support pages outline both the available methods by which the update can be performed - and troubleshooting should you experience difficulties:

Update your iPhone, iPad or iPod touch – Apple Support

If you can't update or restore your iPhone, iPad or iPod touch – Apple Support

If your iPhone, iPad or iPod touch won’t update - Apple Support

iOS update and restore errors – Apple Support

Be aware that while an iPad may be capable of update, in some circumstances you may need to use a computer to perform the update*. To do so, you will need access to either a Windows PC (with iTunes for Windows installed) or a Mac (with iTunes or Finder - as appropriate for the installed version of MacOS). Ensure that your installed version of iTunes has been updated to the most recent version; the essential device drivers are included.

Download and use iTunes for Windows – Apple Support

Update to the latest version of iTunes – Apple Support

Update software on iPhone, iPad or iPod touch in iTunes on PC - Apple Support

Update your iPhone, iPad, or iPod touch with the Finder - Apple Support

(*) If you don’t have access to a suitable computer of your own, that of a helpful friend or family member will suffice. Alternatively, the technicians at the Genius Bar of your local Apple Store or Apple Authorised Service Provider (AASP) will be delighted to assist.

Genius Bar Reservation and Apple Support Options - Apple

If you have a beta profile installed, ensure this has been removed from your iPad - as, otherwise, installation of production software updates may be inhibited. This support page provides the necessary information to remove the beta from your iPad:

How to uninstall iOS beta software - Apple Support

You should note that for your iPad to install an available update, its battery must be charged to at least 50% capacity - and/or be connected to its Power Adapter. Similarly, the iPad can only be updated over a standard WiFi connection - or be updated by a PC or Mac using iTunes or Finder - over a USB connection.

As already stated, in some circumstances you may need to use a computer to perform the update*. If your iPad is too far behind the current version, updating from iPad settings won't be possible.

If a computer is required, as is likely, you will need access to either a Windows PC (with iTunes for Windows installed) or a Mac (with iTunes or Finder - as appropriate for the installed version of MacOS). Ensure that your installed version of iTunes has been updated to the most recent version; the essential device drivers are included.

Download and use iTunes for Windows – Apple Support

Update to the latest version of iTunes – Apple Support

Update software on iPhone, iPad or iPod touch in iTunes on PC - Apple Support

Update your iPhone, iPad, or iPod touch with the Finder - Apple Support

(*) If you don’t have access to a suitable computer of your own, that of a helpful friend or family member will suffice. Alternatively, the technicians at the Genius Bar of your local Apple Store or Apple Authorised Service Provider (AASP) will be delighted to assist.

Genius Bar Reservation and Apple Support Options - Apple

Same issue here. I have the 8th gen iPad and it won’t install. I also have the most current update until now. Seems broken.

Is your battery well charged (>50%)?

Are you on a good wi-fi network (no VPN, no Hotspot, no anti-virus)?

My iPhone is on 15 as well. Perhaps that’s the reason