iOS 9.9.11.2.1 (15C6153) for iPad Pro 12.9-inch (WiFi) ✗ This OTA is not signed. OTA firmwares cannot be restored to. IPSW Downloads collects them for
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Release Date December 13, 2017 Upload Date December 11, 2017 Filename a1dd7b83c6a0759d626231c17144cb929a7ebd42.zip Filesize 1.7 GiB Identifier iPad6,7
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