If you still want to download an IPSW file, follow these general steps:
The "Unlocks Hub IPSW" refers to a modified firmware file that the service claims can bypass Apple’s security. download unlocks hub ipsw ios link
Once you have the link and have downloaded the file, here is how to use it: If you still want to download an IPSW
Furthermore, Apple actively fights against bypass tools. Even if you find a working IPSW + unlock hub link, a subsequent iOS update may relock the device or render it unusable. download unlocks hub ipsw ios link