今天凌晨苹果正式公布了iOS9.2.1正式版更新，此次更新并没有出现大家期待的Apple Pay，更新内容仍然是以修复问题为主。接下来小编为大家带来此次更新的固件下载。
iPod touch 5 - Model A1421, A1509
iPod touch 6 - Model A1574
iPhone 4[S] - Model A1387, A1431
iPhone 5 (GSM) - Model A1428
iPhone 5 (Global) - Model A1429, A1442
iPhone 5c (GSM) - Model A1456, A1532
iPhone 5c (Global) - Model A1507, A1516, A15261, A1529
iPhone 5s (GSM) - Model A1453, A1533
iPhone 5s (Global) - Model A1457, A15181, A15281, A1530
iPhone 6 Plus - Model A1522, A1524
iPhone 6 - Model A1549, A1586
iPhone 6S - Model A1633, A1688, A1691, A1700
iPhone 6S Plus - Model A1634, A1687, A1690, A1699
iPad 2 (WiFi) - Model A1395
iPad 2 (GSM) - Model A1396
iPad 2 (CDMA) - Model A1397
iPad 2 (Mid 2012) - A1395
iPad Mini (WiFi) - Model A1432
iPad Mini (GSM) - Model A1454
iPad Mini (Global) - Model A1455
iPad 3 (WiFi) - Model A1416
iPad 3 (CDMA) - Model A1403
iPad 3 (GSM) - Model A1430
iPad 4 (WiFi) - Model A1458
iPad Mini 3 (WiFi) - Model A1599
iPad Mini 3 (Cellular) - Model A1600
iPad Mini 3 (China) - Model A1601
iPad Mini 4 (WiFi) - Model A1538
iPad Mini 4 (Cellular) - Model A1550
iPad Air 2 (WiFi) - Model A1566
iPad Air 2 (Cellular) - Model A1567
iPad Pro (WiFi) - Model A1584
iPad Pro (Cellular) - Model A1652
