[Q] Samsung Galaxy S duos s7562

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http://forum.xda-developers.com – Do any one have performance issue with Samsung Galaxy S duos s7562. I am very much disappointed with my device as it will get stuck on screen. Huge Lag time. Will take time to go to application after clicking on icon. Cannot play HD videos. While receiving calls the screen will go black, You can hear the ring but cannot see anything on screen. Any help will be appreciated. :( (HowTos)