iPhone 17 Pro iPhone18,1

IPSW Unsigned 23G90

iOS 26.6.2

iOS

Version

26.6.2

Build ID

23G90

File Size

10.73 GB

Release Date

2026-09-08

Last Updated

2026-09-03

Download IPSW

Beta firmware? Download Here →

Want full hardware specs? View iPhone 17 Pro specs →

About This Firmware

iOS 26.6.2 (build 23G90) is an official Apple IPSW for the iPhone 17 Pro, released on 2026-09-08. The file is served directly from Apple's CDN. This firmware is no longer signed by Apple. Standard downgrades are not possible, but the file remains available for reference and advanced use.

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

Filename

iPhone18,1_26.6.2_23G90_Restore.ipsw

Checksums

SHA-256 0ca5a8e383df508b464951410e9e8d627ead8454e47b57c21d06a27d0d04598c

SHA-1 c6b00958170d14ca141490dd4ad5c318dbbbe817

MD5 e359fdaa6153188c93ad09d8c5483673

Direct URL

https://updates.cdn-apple.com/2026SummerFCS/f768ecdf-e037-44e6-bfa6-949b6d127c4f/iPhone18,1_26.6.2_23G90_Restore.ipsw

Other Devices

iPhone XS Max (China)

iPhone11,4

iPhone SE (3rd generation)

iPhone14,6

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