How to unlock any phone password using "Emergency Call" Follow
Don’t be fooled by click-bait viral videos. There is no way to fully unlock a locked phone simply by using the emergency call feature. That being said, the phone does not need to be fully unlocked in order to access emergency calls.
As a built-in safety tool, anyone can access services like 911 without knowing the password and unlocking the phone but it does not inherently bypass security.
Attempting to hack or force access into someone’s phone (by way of emergency calls or otherwise) is illegal and, at least, certainly unethical. If you’ve forgotten your own password and need to use your phone beyond emergency services, you will need to follow your phone’s reset or recovery process through the device’s manufacturer.