About This Firmware
iOS 16.3
(build 20D47) is an official Apple IPSW
for the iPhone 8 (GSM),
released on 2023-01-23.
The download is 5.38 GB and 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 checksums below.
Filename
iPhone_4.7_P3_16.3_20D47_Restore.ipsw
Checksums
SHA-256
ca477057851b46fbacda15a3c60469fbda1516492d593bff27abc07ab0b745ff
SHA-1
cb8b0e668b0a8249f2a57ca86374b2fde19a01b4
MD5
8adab05b956cda0dce1e58edfafcbbaa
Direct URL
https://updates.cdn-apple.com/2023WinterFCS/fullrestores/032-36262/2C10DC57-1287-4AC5-888F-D4A3D3FE21F0/iPhone_4.7_P3_16.3_20D47_Restore.ipsw
Other Devices
iPhone 16 Pro
iPhone17,1
iPhone 6
iPhone7,2
iPhone XS Max
iPhone11,6
iPhone 16 Plus
iPhone17,4
iPhone 12 Pro Max
iPhone13,4
iPhone 4 (CDMA)
iPhone3,3
How to Restore with This IPSW
iTunes / Finder
macOS & Windows- Download the .ipsw file to your computer.
- Connect your iPhone 8 (GSM) 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 8 (GSM) 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 tipIf 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