iPod touch 4 · iPod4,1

iPod touch 4 · iOS 4.2.1

8C148Unsigned

Catalog data · Last updated: Oct 22, 2026, 2:15 AM UTC

Restore IPSW for iPod touch 4: iOS 4.2.1, build 8C148.

Firmware information

Version: iOS 4.2.1
Build: 8C148
IPSW: Restore IPSW
Size: 0.59 GB
Release date: Not available
File name: iPod4,1_4.2.1_8C148_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_4.2.1_8C148_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-2560abd3f18779d82349eda5ae6decbeaf2397f3cf8ac39cf740effa46f820bfc8d

SHA-16a890696126d0cb7f9ccd6b913ecb09cf2029820

MD514d1508954532e91172f8704fd941a93