iPhone 17 Pro iPhone18,1

IPSW Signed 24A446

iOS 27.0.1

iOS

Version

27.0.1

Build ID

24A446

File Size

11.85 GB

Release Date

2026-09-28

Last Updated

2026-09-26

Download IPSW

Beta firmware? Download Here →

Want full hardware specs? View iPhone 17 Pro specs →

About This Firmware

iOS 27.0.1 (build 24A446) is an official Apple IPSW for the iPhone 17 Pro, released on 2026-09-28. The file is served directly from Apple's CDN. This firmware is currently signed by Apple, so it can be used to restore or update your device via iTunes or Finder.

Verify the download using the SHA-256 or SHA-1 checksum listed in the Checksums section below.

Filename

iPhone18,1_27.0.1_24A446_Restore.ipsw

Checksums

SHA-256 7ee7aaa896ef257e26aa54edb2a4ac7f6f6e8e5c20279b124bee38b809c2a6a5

SHA-1 d14fb2344a6831e36c410ba59ecd977f78f22235

MD5 2e1d1f8f749856f9938530fb238a7425

Direct URL

https://updates.cdn-apple.com/2026FallFCS/8451c50e-8b6f-4f5c-94c2-81469528464e/iPhone18,1_27.0.1_24A446_Restore.ipsw

Other Devices

iPhone 5s (GSM)

iPhone6,1

iPhone SE (3rd generation)

How to Restore with This IPSW

iTunes / Finder

macOS & Windows

Download the .ipsw file to your computer.
Connect your iPhone 17 Pro via USB.
Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina+) and select your device.
Update (keep data): hold Option (Mac) or Shift (Windows) and click Update, then pick the .ipsw file.
Restore (erase & install): hold Option / Shift and click Restore iPhone…, then pick the .ipsw file.
Wait for the process to finish - do not disconnect.

Restoring will erase all data on the device. Back up first.

3uTools

Windows

Download and install 3uTools from 3u.com.
Connect your iPhone 17 Pro via USB and trust the computer on the device.
Go to Flash & JB → Easy Flash.
Click Import and select the downloaded .ipsw file.
Choose Flash mode: Update keeps data, Restore wipes the device.
Click Flash and wait for the progress bar to complete - do not disconnect.

Only flash firmware that matches your exact device model.

DFU Mode

Recovery tip

If your device is stuck in a boot loop or iTunes/Finder does not recognise it, enter DFU mode first, then select the .ipsw file as normal.

iPhone 8 / X and later

Quickly press & release Volume Up
Quickly press & release Volume Down
Hold Side button until screen goes black
Hold Side + Volume Down for 5 s
Release Side, hold Volume Down 5 more s
Black screen = DFU active

iPhone 7 / 7 Plus

Hold Sleep/Wake + Volume Down for 8 s
Release Sleep/Wake, keep holding Volume Down for 5 s
Black screen = DFU active

iPhone 6s and earlier

Hold Sleep/Wake + Home for 8 s
Release Sleep/Wake, keep holding Home for 5 s
Black screen = DFU active