iOS 9.9.15.2.1 (19C6063) for iPhone 12 Pro Max ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
potential future use. They might also be useful if you're doing research.
Release Date January 12, 2022 Upload Date January 8, 2022 Filename 0b76f1a769ba4040106458cc77764daef4974ccf.zip Filesize 4.9 GiB Identifier iPhone13,4
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