If you are downloading this from a third-party site, . Tools claiming to "Bypass iOS 15" for free often:

In many "free" versions, the bypass is tethered, meaning if your phone dies or restarts, you have to run the software again.

Like most free bypasses, you usually lose cellular signal (No SIM) and the ability to sign into iCloud via Settings (though the App Store usually works).

iOS 15 jailbreaking is hardware-dependent (iPhone X and older).

The software is surprisingly clean and straightforward. You don’t need to be a developer to navigate the "Start" and "Bypass" buttons.

It successfully handles the newer filesystem changes in iOS 15 that broke older bypass methods.

Once the device is in DFU mode, the actual bypass process takes less than 5 minutes. The Cons: