iOS 9.9.15.4 (19E6241) for iPhone 12 Pro Max ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date March 14, 2022 Upload Date March 1, 2022 Filename b3ccc73336630c6c9ebbae5d7f7e74cb0a38c42d.zip Filesize 4.9 GiB Identifier iPhone13,4
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