I can't install iOS 17.4 on my iPhone 11

Try using iTunes/ Apple Devices app (on a Windows computer) or Finder (on a Mac) to update your iPhone.

“Decent” is not a number. Iirc the thing needs something like 7gig to simply load the update then it has to run it. 1.4gig on top of the 6.9 was enough for me. May be a different problem.

I had “unable to install” over and over again after successfully downloading update, I tried several things but in this order it finally worked-

connected to power

restarted phone

closed all tabs

tried again and it reverified and installed

Good luck

I got “unable to install”. I deleted the update, tried it overnight had the same thing again. I did a soft reset of my phone and a little while later it said “update ready to install” on my home screen. Below that was “install now” or “install tonight”. I did it right away, it installed no prob.😅

The file is big… real big…and it has to be loaded then run which takes even more space. You may have to delete or offload some stuff. There is a thing at the bottom of the screen which tells you if it ran out of space

I tried hard booting my phone and making sure I was on WIFI and it worked.

Does it have enough though. The file alone is over 6gig. Close to 7 for me. Then you’ve got to run the updater which takes even more memory. Might not be the only issue of course.

It helped me log out of Apple ID and update the logout.

It helped me log out of Apple ID and update the logout.

What does the error message say?

The whole “can’t use mobile data thing” just means you’ve got to use some other source. There should be lots in this day and age most places. You might be in the Malaysian jungle or something of course. As long as the file get on your whatever somehow you can run it. It’s not a stream or something (deep cut plan9 from bell labs reference 8D….please stop throwing stuff…OK, it was dumb….is that a dead cat?) make space if you need to, get the file, and run it.

Mate, I was just saying I can’t use my mobile data, and I can not update my phone. Obviously I am using wifi at the moment otherwise how would I be on a discussion page on the internet.

no need to be rude

Mine says "Not available right now".

I tried so many times with decent storage and still won’t work

I got through the first bit, and then it’s just stopped and says preparing update, but nothing is actually happening.