The Smartphone Samsung Galaxy Win Duos or Quattro, it's a great and powerful device, that is in the same category of Samsung Gran Duos which had a update recently, I propose to Samsung bring a update to Galaxy Win/Quattro duos, because it have many thing that could be upgraded for exemple:

• Increase the battery time life
• Improve the interface and make it more smooth and flowing
• make possible use external SD to install apps without root it
• Use less Ram, to improve the device speed
• and many other things...

The specifications of cellphone are a 1.2Ghz Quadri-core and 1GB Ram, It's enough to support any update and we, the people who own the Galaxy Win/Quattro ask to you, Samsung, to update and give more support to this great device! 

Thank you!