If you've forgotten the password to your Galaxy S7, don't panic - there are ways to regain access to your device. Follow these steps to unlock your Galaxy S7 if you've forgotten the password:

1. Sign in with your Google Account: Attempt to unlock your device multiple times until you see the option to sign in with your Google Account. Enter the Google Account credentials associated with your Galaxy S7 to unlock the phone.
2. Use Android Device Manager: If you have enabled Android Device Manager on your Galaxy S7, you can remotely reset the device's lock screen password. Visit the Android Device Manager website on a computer, sign in with your Google Account, and select your Galaxy S7 to reset the password.
3. Perform a Factory Reset: If the above methods don't work, you may need to perform a factory reset on your Galaxy S7. Keep in mind that a factory reset will erase all data on your device, so it's essential to back up your data beforehand. To perform a factory reset, power off your Galaxy S7, then simultaneously press and hold the Volume Up, Home, and Power buttons. Select the 'Wipe data/factory reset' option from the recovery menu using the volume keys, then confirm your selection by pressing the Power button.
4. Contact Samsung Support: If you're still unable to unlock your Galaxy S7, contact Samsung Support for further assistance.

Remember to create a new, memorable password for your Galaxy S7 to prevent this issue in the future. Additionally, consider using a password manager to securely store and manage your passwords.