iPhone 14 Pro iPhone15,2

IPSW Unsigned 21D50

iOS 17.3

iOS

Version

17.3

Build ID

21D50

File Size

7.38 GB

Release Date

2024-01-22

Last Updated

2024-01-13

Download IPSW

Beta firmware? Download Here →

Want full hardware specs? View iPhone 14 Pro specs →

About This Firmware

iOS 17.3 (build 21D50) is an official Apple IPSW for the iPhone 14 Pro, released on 2024-01-22. 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

iPhone15,2_17.3_21D50_Restore.ipsw

Checksums

SHA-256 35a2229560dc92a94bac9eedd60cd315cf942f71dcb5a050f1738f50efebad64

SHA-1 d9daf2704225646278d179187c37e60b187c2d69

MD5 cb6ce41d4b7398cb07e29f84ff710e54

Direct URL

https://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81174/16619A78-E8C1-453B-A996-6826E5A4FCB8/iPhone15,2_17.3_21D50_Restore.ipsw

Other Devices

iPhone 7 Plus (Global)

How to Restore with This IPSW

iTunes / Finder

macOS & Windows

Download the .ipsw file to your computer.
Connect your iPhone 14 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 14 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