Fix GPS Mediatek

Download and install patch via CWM: http://tinyurl.com/l8ppyuz
Connect your phone into internet (via Wi-Fi or Mobile internet)
Open Settings -> Location -> stick on: Use GPS satelites, GPS EPO assistance, A-GPS -> Toogle on EPO settings -> stick off: Auto download
Dial *#*#3646633#*#*
Select YGPS.
Information tab
Click "Full", and then "Cold", then "Restart".
Go to the tab Sattelites - and wait for the signal to lock (this may take a long time!)
Exit the menu
Done