ROOT tecno M3 the easiest

http://techlatch.com/root-tecno-m3/ just download eroot software google search it, and just follow the procedures

ENJOY AND USE DROID VPN OR TUNNEL GURU WITH MTN BIS

pls visit tunnel guru website and check the settings there. also for unrooted android device 4.0 and above enjoy droid VPn, register and enjoy, ensure Udp mode and port 500