How to unlock samsung galaxy s duo s phone?

my samsung DUOS GT-7562 is not working by the methods you gave me above. what shall i do please help me. 

... code. Switch ON your Samsung Galaxy S duos with a NOT ACCEPTED SIM ... what's being displayed on your Samsung Galaxy Note 4G. Compose ... .samsung.com/in/consumer/mobile-phone/mobile-phone/dual-sim-phone/ ...  

thanks.. network data mode worked for me.... 

i press the volume up+down+home+power button but did not open the restart option 

Thanks a lot. Data network option worked for me and not lost any data. Thanks ... 

Too many pattern attempt in Samsung Galaxy S Duos GT-S7562, Forgot gmail Password,i tried above steps but sill showing same screen after the restart. what can i do please help me...... 

thank u very much.. through data network mode procedure is worked out for me... 

... this your mobile will be unlock... enjoy..... 

thank u very much dear when data network enabled by using power on button my phone unlocked b 

Hi All, There is another way you can try out without wiping data/factory reset. If your sim card has access to Mobile data(2G or 3G enabled), press hold the power button and you will see the ...  

... enter a Google account, the phone will automatically enable data connection ... to factory-reset your phone because there isn't another ... process completes, the phone will be unlocked, but the applications ...