1. First root your phone.
2. Download "root explorer" and open root explorer find this path:
data\misc\mtkgps.dat
3. Delete this file. Restart phone.
5. Download "Faster GPS" and open it. Set your home country same as in the picture.
4. Download "Mobileuncle Tools " and open Mobileuncle Tools
5. Find engineer mode. Open Engineer Mode (MTK). Under the Location title:
5.1 open Location Based Service. make sure your Enable A-gps and enable epo is marked. Alsa mark Auto Download on EPO.
5.2 Press back button once and open GPS function. Enter YGPS. After couples of seconds(mine was 7) it catches the satelites.