OTA firmwares cannot be restored to. IPSW Downloads collects them for potential future use. They might also be useful if you're doing research.
| ✗ | iPhone 7 Plus (GSM) | iOS 9.9.10.0.3 (14A551) | October 17, 2016 | 1.8 GiB | cee5693806978b18108a053b90037d14987702e9.zip |
| ✗ | iPhone 7 (GSM) | iOS 9.9.10.0.3 (14A551) | October 17, 2016 | 1.7 GiB | c2b133209e88bc505fba5758f1650a9336629619.zip |
| ✗ | iPhone 7 Plus (Global) | iOS 9.9.10.0.3 (14A551) | October 17, 2016 | 1.8 GiB | bcdfc4d4d64107372ebc3b0498221a8d6fdab8e8.zip |
| ✗ | iPhone 7 (Global) | iOS 9.9.10.0.3 (14A551) | October 17, 2016 | 1.7 GiB | b38e383f158fd4ebf5d5004314e01737c98a898f.zip |