iPod touch 4 · iPod4,1

iPod touch 4 · iOS 5.1

9B176Unsigned

Catalog data · Last updated: Oct 22, 2026, 3:30 AM UTC

Restore IPSW for iPod touch 4: iOS 5.1, build 9B176.

Firmware information

Version: iOS 5.1
Build: 9B176
IPSW: Restore IPSW
Size: 0.73 GB
Release date: Not available
File name: iPod4,1_5.1_9B176_Restore.ipsw
Download host: secure-appldnld.apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostsecure-appldnld.apple.comiPod4,1_5.1_9B176_Restore.ipsw

The catalog marks this build as unsigned. A normal restore may not be accepted.

Back up before you restore. A restore can erase the data on the device. The identifier has to match, and a file you can download may still be rejected for restore. Download only when the model name and identifier match the device you have.

Checksum

SHA-25622022f4bb003deb24189063692c478d74275dcb1e1b2b7df30cbe6d01048b167

SHA-165d7ee2d2fa505ce6fe91271f84f3fc9cbcc81a1

MD53eeb95d6b80b50d33708471d2e1b9306