User level: Level 1 (4 points)Is there a way that I can update my iOS 15.8 to iOS 18
[Re-Titled by Moderator]
Original Title: iOS
Posted on Sep 25, 2026 7:14 PM
User level: Level 10 (756,437 points)Sep 25, 2026 7:17 PM in response to adewumi210
Use a computer or the Software Update function in Settings. If you encounter an issue other than the two listed below, describe it.
An iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, or iPhone SE 1 isn't capable of 16 or above; they require an A11 or better CPU.
Apple is no longer signing 18 for models capable of 26 or above.
(265057)
User level: Level 10 (97,882 points)Sep 26, 2026 3:48 AM in response to adewumi210
Welcome and thank you for reaching out. 🤗
Open Settings ➢ General ➢ Software Update.
If you get the message; "iOS is up to date", then your iPhone has reached the end-of-life support for Software Updates to the latest iOS operating system, depriving you of new features created many years ago.
Many modern apps are not compatible, limiting the usability of your device.
You are invited to visit an Apple retail store to discuss your iPhone upgrade options.
Learn about the ⇢ iPhone Upgrade Program. ⇠📲
Since your iPhone is too old for a trade-in, the only option is to recycle it for free. ♻️
Good luck! 👋🏼😉
Smiliñ 😎 Brian | Community Volunteer
User level: Level 10 (199,348 points)Nov 7, 2026 5:12 AM in response to Niel
The point was that if the user has an iPhone 7.......which delsaka later said they did......the iOS version for that iPhone can never be higher than 15.8.8.
Not possible to install any higher iOS version than 15.8.8 in that case.
User level: Level 9 (55,707 points)Sep 26, 2026 4:41 AM in response to adewumi210
adewumi210 wrote:
Is there a way that I can update my iOS 15.8 to iOS 18
Which iPhone do you have? If it is an iPhone 6s, 7, 7 Plus, or SE (1st generation), iOS 15 is the end of the line. You can update to the latest release of iOS 15, but not to iOS 18.
You need an iPhone XS, XS Max, or XR to update to iOS 18. Or a later model to update beyond iOS 18, to iOS 26 or 27.
User level: Level 9 (55,707 points)Nov 7, 2026 5:24 AM in response to Bob Timmons
Bob Timmons wrote:
The point was that if the user has an iPhone 7.......which delsaka later said they did......the iOS version for that iPhone can never be higher than 15.8.8.
If there ever was an iOS 15.8.9, an iPhone would be eligible to receive that bug fix / security release. But you are correct in that an iPhone 7 will never be able to run iOS 16 or higher.
User level: Level 10 (756,437 points)Nov 7, 2026 4:57 AM in response to Bob Timmons
No, those can't be the iPhone delsaka was referring to. 15.7.3 through 15.8.8 were only ever available for models incapable of 16 or above.
(265471)
User level: Level 10 (199,348 points)Nov 6, 2026 11:17 AM in response to delsaka
How to update from iOS 15.8 to iOS 18 on iphone
The first requirement would be to have an iPhone XR, iPhone XS or XS Max. Do you have one of these models?
If you have an iPhone 7.....you cannot even update to iOS 16. Your iPhone will remain on iOS 15.8.8
Time for a new phone for you.
User level: Level 1 (8 points)Nov 6, 2026 11:10 AM in response to adewumi210
How to update from iOS 15.8 to iOS 18 on iphone
User level: Level 1 (8 points)Nov 6, 2026 11:11 AM in response to Servant of Cats
7
User level: Level 1 (8 points)Nov 6, 2026 11:14 AM in response to Servant of Cats
Apple 7
Originally posted at discussions.apple.com/thread/256365181