Instead of looking for a crack, you can use the official version of safely. Official & Safe Options

If you are stuck and need a way to unlock your device for free, consider using Apple's Official Support to restore your device via iTunes or iCloud, though this will erase the data on the phone.

Downloading software "cracks" or "registration codes" from unofficial sites is very risky. These files are often used to spread malware that can steal your personal information or lock your computer.