When restoring iPhone SE1 will it automatically upgrade to ios15 (its maximum version).

Question

When restoring iPhone SE1 will it automatically upgrade to ios15 (its maximum version).

Hi all

I am about to hand my phone in for a new battery and wanted to factory reset and restore data afterwards from a backup on my Mac. However, I am concerned how my phone will update to its maximum iOS version ios15. Does it do it automatically or is it a different stage from the restore process?

Many thanks in advance for your advice.

Earlier iPhone models

Posted on Mar 21, 2025 3:03 PM

Reply

Answer 1

KiltedTim

Level 10

211,800 points

Mar 21, 2025 4:34 PM in response to ColourSkyBlue

It's not possible to downgrade it. It will not go back to iOS 12.

Reply

Answer 2

Mar 24, 2025 12:20 PM in response to KiltedTim

Oh I see. So when you reset the iPhone to factory settings, the iOS version it is at, in this case ios15, stays the same. I do not need to do anything to rebuild it.

Thanks

Reply

Answer 3

KiltedTim

Level 10

211,800 points

Mar 21, 2025 3:18 PM in response to ColourSkyBlue

Why does this present a problem?

Reply

Answer 4

Mar 21, 2025 3:21 PM in response to KiltedTim

Hi Tim

I don't want to go and reset to factory ...taking it back to ios12 only to find there is no way of restoring to ios15.

I think some apps might not work with 12.

Thanks

Reply

Quick Links

When restoring iPhone SE1 will it automatically upgrade to ios15 (its maximum version).