Default My s duos GT-S7562 GPS not working

Gentlemen,
I brought a brand new Galaxy S duos and observed a defect on GPS and AGPS, where couldn't find my physical location and this has resulted in different application I.e wether widget not work fine and I have to setup the location manually.
Other apps such as Facebook, whatsapp location features not working.
I've downloaded these two apps (my world, GPS status) which has lead the GPS to find my actual location accurately of 3-4 meters.
I learnt at many forums that, Samsung mobile has launched the S series with break and bad GPS patches.
Please support me, as I'm relaying on GPS in such type of forms.

Sent from my GT-S7562 using xda app-developers app