It looks like you're asking about a feature related to a phrase: "download unlocks hub ipsw ios 2021".
A feature for such a service (if it were legitimate — which most are not) might be described as:
Device Damage: Attempting to flash unofficial firmware can "brick" your device, making it permanently unusable. download unlocks hub ipsw ios 2021
: Some reports indicate that these videos may use deceptive editing, such as remotely removing a device from "Lost Mode" during a demo to make it appear as though the firmware performed the unlock. Official and Safe IPSW Sources
to flash a specific "custom" firmware (e.g., "unlocks hub as 18.1.1 iPhone 13 IPSW"). Availability It looks like you're asking about a feature
Users are strongly advised to use caution, as legitimate IPSW files are only officially distributed by Apple and do not natively bypass security features. The Risks of "Unlocks Hub" IPSW Files
If you are looking for standard iOS firmware to restore or update your device (without the intent to bypass security locks), you should only use verified sources: Download the IPSW file : You download the
For the uninitiated, an IPSW (iPhone Software) file is the raw firmware package used to install iOS on your iPhone, iPad, or iPod Touch. Unlike standard Over-the-Air (OTA) updates, an IPSW file allows for a "clean install"—wiping the device entirely and installing a fresh copy of the operating system.