Modding a PlayStation 3 opens up a world of homebrew, backups, and custom features. If you are running Custom Firmware (CFW) or PS3HEN, you may have encountered tools designed to test patches, bypass specific firmware checks, or modify system files safely.
On a modified console, keeping your system permanently connected to PSN puts you at high risk for a network ban. When you stay offline, your console cannot refresh temporary licenses, or verify content links. This results in the infamous "Renew License" error screen. test patcher ps3 link
Here is the crucial warning: