Important Disclaimer:
Before proceeding, I want to emphasize the importance of using legitimate and secure software. "Full nulled" often refers to software that has been heavily modified or cracked, which can introduce significant security risks. Using such software can compromise the security of your server and potentially lead to legal issues.
WHM Free Trial – 15-Day Full Access Control Panel - cPanel
Conclusion
# Write the new key echo "YOUR‑NEW‑LICENSE‑KEY‑HERE" > /etc/cpanel/keys/serial chmod 600 /etc/cpanel/keys/serial chown root:root /etc/cpanel/keys/serial