Download iOS Firmware 5.1 (9B176) for iPhone 4 (GSM)

    • iPhone3,1_5.1_9B176_Restore.ipsw
    • 783.54 MB
    • iPhone 4 (GSM)
    • 2,243 times
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* All iOS firmware files are hosted with Apple Inc. official servers and third party hosting services. We do not provide mirrors or hosting these files locally.