Mostly we choose strong password, pattern or PIN to lock android phone and sometime it create trouble when we forgot that lock password. Here is a simple trick that can help you to unlock your mobile phone easily.
First you need to open https://myaccount.google.com/find-your-phone-guide then login with that google account that you set in your mobile.
After log in you’ll see all your linked android phones in list. Select your phone from list that you want to unlock.
Now click on Lock your phone option. Here you can also do some more things if you want to find your phone, like Ring your phone, show location of your phone etc.
At the next screen enter new password or PIN and click Lock button.
That’s it now your phone is locked with new password/PIN and you can open it by using new password/PIN.