Without a valid license, you have no access to customer support if something goes wrong—which is a serious concern when dealing with firmware and device unlocking, as a mistake could "brick" your device, rendering it useless. A Trustpilot review for DC Unlocker stated, "When reached out to support, they gave me 'solutions' that does not work. I have asked for a refund... they refused". If paying customers struggle to get help, a user of a cracked version will be completely on their own. You also won't receive important software updates that add support for new devices or fix bugs.
Downloading "cracked" versions of software like DC-Unlocker is generally not recommended for several critical reasons: Security Risks: dc unlocker cracked version download