If your iPhone is stuck on “Preparing Update” while installing iOS 26, you’re not the only one. This step usually lasts just a few minutes, but for some users it drags on for hours or never finishes. The good news: there are several reliable fixes to get past it.
Table of contents
Why does “Preparing Update” get stuck?
Here’s what’s happening when your phone says Preparing Update: iOS has already downloaded the update file, but now it’s verifying it, unpacking it, and getting things ready to install. If it hangs, the likely culprits are:
- Not enough free storage — iOS 26 is large (see download size here). Your iPhone needs extra space to unpack the installer.
- Wi-Fi instability — the process verifies files with Apple’s servers; weak Wi-Fi can stall it.
- Corrupted update file — a partial or bad download can lock up preparation.
- Battery or heat issues — if your iPhone overheats, it may throttle or pause processes (fix overheating here).
- Server congestion — on release day, Apple’s servers get slammed. (What time does iOS 26 come out?)
How to fix iOS 26 stuck on “Preparing Update”
1. Be patient (at first)
Sometimes it really does take longer than expected. Give it up to an hour if you just started.
2. Force restart your iPhone
- iPhones with Face ID: press Volume Up, then Volume Down, then hold the Side button until the Apple logo shows.
- Older iPhones: hold Home + Power until the Apple logo shows.
Then check Settings → General → Software Update again.
3. Delete and re-download the update file
- Go to Settings → General → iPhone Storage.
- Find the iOS 26 update file and delete it.
- Restart your iPhone, reconnect to Wi-Fi, and try downloading again.
If downloads are slow, see: iOS 26 taking forever to download or install?.
4. Free up storage
iOS 26 needs several gigabytes free. Delete unused apps or offload photos. More details: iOS 26 download size.
5. Update using a computer
If the update keeps failing over Wi-Fi:
- On Mac: open Finder → connect iPhone → select your device → Check for Update.
- On Windows: open iTunes → select iPhone → Check for Update.
6. Check your connection and battery
- Stay on a strong Wi-Fi network.
- Plug into power so your iPhone doesn’t pause mid-process.
When nothing works
If you’ve tried everything and your iPhone is still stuck:
- Look at all reported iOS 26 bugs and issues with fixes.
- Consider waiting for a point release if Apple acknowledges the bug.
- As a last resort, you can downgrade from iOS 26 to iOS 18 safely while Apple still signs the older build.
Related issues
- iOS 26 stuck on Update Requested — here’s how to fix it
- Can’t update to iOS 26? Here’s how to fix it
- iOS 26 update not showing up — fixes
FAQs
Usually 5–15 minutes. If it goes over an hour, something’s wrong.
No. It just restarts your phone. If the update file was corrupted, you may need to re-download it.
Yes. Deleting and re-downloading often clears stuck updates.
The takeaway
If your iPhone is stuck on Preparing Update in iOS 26, don’t panic. Free up space, restart, or delete and re-download the installer. If Wi-Fi or Apple’s servers are to blame, using a computer for the update usually works. And if nothing helps, you can downgrade to iOS 18 until Apple patches the bug.
