iBridge2,21 · iBridge2,21

iBridge2,21 · bridgeOS 6.4

19P4242Unsigned

Catalog data · Last updated: Oct 21, 2026, 8:27 PM UTC

Restore IPSW for iBridge2,21: bridgeOS 6.4, build 19P4242.

Firmware information

Version: bridgeOS 6.4
Build: 19P4242
IPSW: Restore IPSW
Size: 0.59 GB
Release date: Mar 14, 2022, 5:24 PM UTC
File name: iBridge2,1,iBridge2,10,iBridge2,12,iBridge2,14,iBridge2,15,iBridge2,16,iBridge2,19,iBridge2,20,iBridge2,21,iBridge2,22,iBridge2,3,iBridge2,4,iBridge2,5,iBridge2,6,iBridge2,7,iBridge2,8_6.4_19P4242_Restore.ipsw
Download host: updates.cdn-apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostupdates.cdn-apple.com

iBridge2,1,iBridge2,10,iBridge2,12,iBridge2,14,iBridge2,15,iBridge2,16,iBridge2,19,iBridge2,20,iBridge2,21,iBridge2,22,iBridge2,3,iBridge2,4,iBridge2,5,iBridge2,6,iBridge2,7,iBridge2,8_6.4_19P4242_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. bridgeOS belongs to the matching Mac hardware and is not a macOS installer.

Checksum

SHA-2560c8d8786c2c2f354466d23dd612b5092286c59938363e34f750e8f8184fb2389

SHA-1139a15138788d196602d8cd3206be7982ba601c9

MD59d45c08f202a5e3d8dd98b76929863c9