iPhone 6(S)(+) Can I restore an iPhone with iOS version?

NJDavidD

macrumors newbie
Original poster
Sep 19, 2018
1
0
New Jersey, usa
For a whole bunch of reasons I'll spare everyone I'm using an iPhone 6S running iOS10. It's perfect for all my needs. I'll be switching to a different brand phone before I'd go to iOS 11 or 12.

I purchased another iPhone 6s (refurbished) to serve as a back-up. It sadly came with iOS11. Is there any way to wipe it completely and load it with the back-up of my existing phone so it reverts to iOS10?

I know Apple doesn't allow downgrades of iOS, but I'm only looking to create an exact back-up. I need help to find out if this is at all possible of if I should give-up looking for a method.

Thanks!
 

BugeyeSTI

macrumors 68040
Aug 19, 2017
3,484
2,420
Arizona
No, you’re stuck on whatever it came with. You can only update to what Apple is still signing. As of now, that’s 11.4.1 or 12.0.
 
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