These are paid software suites (with free trial features) designed to fix iOS system issues without data loss in some scenarios.
https://apple.com/itunes (or built into macOS Finder on Catalina+) iphone firmware flash tool link
For flashing iPhone firmware (iOS), several tools are available depending on whether you need a standard update, a complete system restoration, or advanced management features like downgrading. 1. Official & Native Tools These are paid software suites (with free trial
The iPhone Firmware Flash Tool, also known as the iPhone Firmware Restore Tool, is a software utility used to restore, update, or downgrade the firmware on iPhone, iPad, and iPod touch devices. This tool is essential for troubleshooting and repairing issues related to the device's operating system. In this article, we will explore the iPhone Firmware Flash Tool, its features, and provide a link to download the latest version. Official & Native Tools The iPhone Firmware Flash