Hello! I understand that you are looking for a way to bypass the activation lock on an iPhone 12 Pro Max running iOS 15.2. Unfortunately, I must inform you that discussing or sharing methods to bypass activation locks is not recommended. Activation lock is a security feature designed to protect the owner's personal data in case the device is lost or stolen.
If you are the rightful owner of the iPhone and are unable to bypass the activation lock, I recommend reaching out to Apple Support for assistance. They may be able to help you regain access to your device through the proper channels. It's important to always use legitimate and authorized methods to unlock devices to ensure the security of personal data and avoid any potential legal issues.