OTA firmwares cannot be restored to. IPSW Downloads collects them for potential future use. They might also be useful if you're doing research.
| ✗ | iPod touch 6 | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | fbddad8b964445acbc23d82db1aee484428a1e41.zip |
| ✗ | iPod touch 5 | iOS 9.2.1 (13D15) | January 19, 2016 | 1.1 GiB | ab1644a5f932f2491dd2aaaa6a8abf0203ff5c69.zip |
| ✗ | iPhone 6s+ | iOS 9.2.1 (13D15) | January 19, 2016 | 1.6 GiB | 130f891790db85e1581ce5628d3c52efa6f0d509.zip |
| ✗ | iPhone 6s | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | 1ad1c85ee991e39a5587d14bf38f366f8f4b81bd.zip |
| ✗ | iPhone 6 | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | 2368192b02de4341f86bd4a323d91abab9a7ebaf.zip |
| ✗ | iPhone 6+ | iOS 9.2.1 (13D15) | January 19, 2016 | 1.6 GiB | 41a1183f6b2d1dfee8f615f5b2641ee7a369890b.zip |
| ✗ | iPhone 5s (Global) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.3 GiB | 6f99d147d5c9d219142ba96f01f1d82e1208da38.zip |
| ✗ | iPhone 5s (GSM) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.3 GiB | 57f98437ec4f156490bdcb99120dd7a7df97466c.zip |
| ✗ | iPhone 5c (Global) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | 8206e75c674781b469a20013990efa2e77498901.zip |
| ✗ | iPhone 5c (GSM) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | 326a1224eea071dc9cff1bc4a27145076f81241f.zip |
| ✗ | iPhone 5 (Global) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | 84dc70599b30c87e8adf7535bef79156ade3fc47.zip |
| ✗ | iPhone 5 (GSM) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | 9715f541e60e23790f99f6b6af35db624efe21da.zip |
| ✗ | iPhone 4[S] | iOS 9.2.1 (13D15) | January 19, 2016 | 1.1 GiB | f06f4d4dca715dd43d21c0baee6b6168effa2a2f.zip |
| ✗ | iPad Air 2 (Cellular) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | 9f602ec18764cf254b14c5fe4c674153d66bde97.zip |
| ✗ | iPad Air 2 (WiFi) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.3 GiB | 425914f3876f14fc61d807cbafb6b059b0039d42.zip |
| ✗ | iPad mini 4 (Cellular) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | f7a28f5691f61168cd3b17c5a801450cc5d44dc7.zip |
| ✗ | iPad mini 4 (WiFi) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.3 GiB | 107e7bbf93c6529d9216141a0fa79e755c1e76ee.zip |
| ✗ | iPad mini 3 (China) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | 9f102ec9bc03678069bf1f6717fae3d65a9bfca7.zip |
| ✗ | iPad mini 3 (Cellular) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | 0a623c633c2241ef73dad798391c9e3e9b05db42.zip |
| ✗ | iPad mini 3 (WiFi) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.3 GiB | 7ca98b27b7ab17d24fdaa5d1e40fe4783c4b4a4f.zip |
| ✗ | iPad mini 2 (China) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | c1f05df24c0cef0c564bceb8444d6c09874f2616.zip |
| ✗ | iPad mini 2 (Cellular) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | a7cf703f723c92cf8bfa0960337c9760ec2208c6.zip |
| ✗ | iPad mini 2 (WiFi) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.3 GiB | c48aa1599fb1cf39554c0fd48ab25fc964611861.zip |
| ✗ | iPad Air (China) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | 4849f6e00c6247c83879a2885fad48396a173e96.zip |
| ✗ | iPad Air (Cellular) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.4 GiB | 5ac52263653a158db616e92ade05836a69e25904.zip |
| ✗ | iPad Air (WiFi) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.3 GiB | f3c2722c9cd0440326f62814605914dd5db489dd.zip |
| ✗ | iPad 4 (Global) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | 7fa68e16c4a2b1da68a548aade4fbf0623db7291.zip |
| ✗ | iPad 4 (GSM) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | 244a8245af98e5b850b1d8edbd4c8e5c5b0b6cd1.zip |
| ✗ | iPad 4 (WiFi) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | c2ccc72aef3de3c13405f7c6b6ff04787fe7b341.zip |
| ✗ | iPad 3 (GSM) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | c9edd2240180cabf5119d6d99209724e68c6b0ed.zip |
| ✗ | iPad 3 (CDMA) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | 4f590058363a59cd4c7b235ddcc5318c10f325bf.zip |
| ✗ | iPad 3 (WiFi) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.2 GiB | 766f22c599b99ea9ea2f8f9d1f2f3077162b90b6.zip |
| ✗ | iPad mini (Global) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.1 GiB | d90bfdfbfb6f0f24f6ec528a0247def4b4f2df0a.zip |
| ✗ | iPad mini (GSM) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.1 GiB | d2f79276217f01871fe4862026d0c076f39ef51a.zip |
| ✗ | iPad mini (WiFi) | iOS 9.2.1 (13D15) | January 19, 2016 | 1.0 GiB | c2c3c980830b15dd4be332a11306fb75a3f6f01c.zip |
| ✗ | iPad 2 (Mid 2012) | iOS 9.2.1 (13D15) | January 19, 2016 | 968 MiB | 505db45e57d1d2dccd9b3c42506aa91fde5190fd.zip |
| ✗ | iPad 2 (CDMA) | iOS 9.2.1 (13D15) | January 19, 2016 | 983 MiB | 01e2f0287ed3fbedb8e784a76939c8668c58610f.zip |
| ✗ | iPad 2 (GSM) | iOS 9.2.1 (13D15) | January 19, 2016 | 983 MiB | 8fb9f0d37ecaa9fcc8107bb486577a79155b3825.zip |
| ✗ | iPad 2 (WiFi) | iOS 9.2.1 (13D15) | January 19, 2016 | 968 MiB | 72dce66344b44648b19c13a9cfe10145bff9b3aa.zip |