| Feature | iTunes / Finder | 3uTools Pro Flash | |--------|----------------|-------------------| | Flash any signed iOS version | No (always latest) | Yes | | Preserve user data during restore | Limited | Full control | | Prevent baseband update | No | Yes | | Flash to recovery/DFU stuck devices | Often fails | High success rate | | Batch multi-device flashing | No | Yes | | Detailed error codes & solutions | Vague | Specific (e.g., “Error 4013 fixed by...” ) |
3uTools will list available signed firmwares. Select the version you want (e.g., iOS 17.6.1). Click "Download." The tool verifies the SHA1 hash to ensure the file isn’t corrupted. pro flash 3utools