About This Firmware
iOS 6.1.6
(build 10B500) is an official Apple IPSW
for the iPhone 3GS,
released on 2014-02-21.
The download is 784.85 MB and 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 checksums below.
Filename
iPhone2,1_6.1.6_10B500_Restore.ipsw
Checksums
SHA-256
37a4b3bb0cbc0cc4c94f4ec2987f23c9207644c2669084084c4a78e8325e6b91
SHA-1
eb7f495760a500bb284b07f11492a4fadf687802
MD5
1b6a0a0c9701d3762be7c4e90799c0b5
Direct URL
https://secure-appldnld.apple.com/iOS6.1/091-3457.20140221.Btt3e/iPhone2,1_6.1.6_10B500_Restore.ipsw
Other Devices
iPhone 5c (GSM)
iPhone5,3
iPhone 6s+
iPhone8,2
iPhone XS Max
iPhone11,6
iPhone 15 Pro Max
iPhone16,2
iPhone 15 Plus
iPhone15,5
iPhone 11
iPhone12,1
How to Restore with This IPSW
iTunes / Finder
macOS & Windows- Download the .ipsw file to your computer.
- Connect your iPhone 3GS 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 3GS 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