✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
| Release Date | August 14, 2025 |
|---|---|
| Upload Date | August 8, 2025 |
| Filename | iPhone15,4_18.6.1_22G90_Restore.ipsw |
| Filesize | 8.6 GiB |
| SHA256sum | f56ec6ee6adaa576b542b8b736243ae527fdbfb271830c3d194b2a0978c566a2 |
| MD5sum | a9859eb5c26ae581f8c39af06ce0b6d6 |
| SHA1sum | 74ba9f2b356eba43a254721acbd2f24d207a4399 |
| Identifier | iPhone15,4 |
This update provides a new Blood Oxygen experience for users in the United States with Apple Watch Series 9 and Series 10, and Apple Watch Ultra 2. Measurements are calculated on iPhone and viewed in the Health app.
For information on the security content of Apple software updates, please visit: