Click "Boot" and select the corresponding .ipsw firmware file when prompted.

is not an Apple-certified software. Instead, it is a third-party utility commonly promoted on various hacking, jailbreak, and mobile repair forums. Based on user reports and software descriptions, the toolkit typically bundles several modules into one interface, including:

Several cybersecurity forums (including Reddit’s r/jailbreak and r/setupapp) have analyzed “Gecko iPhone Toolkit.” Common findings: