iOS 9.9.15.1.1 (19B6081) 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 November 17, 2021 Upload Date November 12, 2021 Filename 107b9df959e721b9d03bae3b16b664a686ca01fd.zip Filesize 4.9 GiB Identifier iPhone13,4
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