This firmware is not signed. This means you cannot restore to it in iTunes.
| Release Date | 12 January 2022 |
| Upload Date | 08 January 2022 |
| File Name | iPhone14,3_15.2.1_19C63_Restore.ipsw |
| File Size | 6.20 GB |
| SHA256sum | ef7502ef06bfb55e04da6a3f5f41e75d15ebdf82575ef998df54790e8b548cc6 |
| MD5sum | 7e9435a9df834f763a88235b9014eacf |
| SHA1sum | 1d8d298dcf5d2d625923d25e92073c5a7a605030 |
| Identifier | iPhone14,3 |
cd ~/Downloads.idevicerestore -e iPhone14,3_15.2.1_19C63_Restore.ipsw and press Enter.