Instead of searching for a risky hack, consider these official ways to manage your camera count more affordably:
To avoid scams (which are common on platforms like eBay), only purchase from reputable partners: synology ip camera license hack link
I've found some online forums and discussions mentioning "hacks" or workarounds to bypass or crack the Synology IP camera license. These methods often involve modifying system files, replacing license files, or using third-party tools to bypass the licensing mechanism. The Truth About Synology IP Camera License Hack
If you're looking to use multiple IP cameras with your Synology NAS, consider the following: replacing license files