Locked out by too many patterns attempts it tell me to sign in my google account but i dont remember my username and password please help,i have a samsung r680

SOURCE: locked out by too many

1. On the computer: Start PC Companion™.
2. On thecomputer: In the Support Zone™ descriptor, in the Software Updatesection click Start > (Repair) and follow the instructions on the PCmonitor screen.
3. Turn off the phone.
4. Connect the USB cable to your computer.
5. On the phone: Press and hold down Back key and connect the USB cable to the phone.
6. Follow the instructions on the screen.

Note : The software in your phone will be replaced. All personal data stored in your phone will be lost.

There is also a way to unlock the pattern screen lock by signing in with your Google account.

1. After 30 seconds, tap Forgot pattern?
2. You need to log in with the primary gmail.com e-mail address and not the alternative email address connected to the Google account.
3. Tap the username field and enter the primary Google account user name.
4. Tap the password field and enter the primary Google account password.
5. Draw a new unlock pattern and tap Continue .
6. Draw the new unlock pattern again and tap Continue .

If these options are not available to you, please describe preciselywhat you see when attempting to connect to your PC and use PCCompanion.