Locked out of Galaxy S Duos - Failed lock pattern I have Samsung Galaxy S Duos S7562 which is now locked with too many failed pattern attempts. I don't remember the pin for it.   

I've changed my password for Google account from laptop and I wanted to login from the locked out phone but it says wrong password/username.
But I can log in on laptop. I'm using mobile data connection to sign in to google account.  

Please someone help me as I don't want to hard reset, I have important data on it.
Try all the methods in a similar question on here: Izzy's Answer on Unlocking Android Devices via Google, ADB, and Recovery - Android Enthusiasts

There are almost 10 angles to work from running 3 pages long, it is too much to quote here and all credit goes to Izzy for spending a lot of time working up that answer.

If none of those work, please revise your answer to include any errors you encountered and whether your device is rooted, knowledge of installed Android version, build number, etc.

Hope this helps,