Use Mtn Bis on All Android Devices

Just folow the Below steps;
APN: Web.gprs.mtnnigeria.net
proxy : leave it empty
port: leave it empty
Downloaad Droid Vpn from playstore
Now go into ur droid vpn setting
choose tcp for d connection
after that change

udp: 53
tcp: 5222
bind local: 1100
afta dis nw go to http header setting in droidvpn
Host: web.blackberry.com
x-host: web.blackberry.com
dats all
To make it stable go into terminal emulator nd type
"ping google.com"

in ur droidvpn u arer to enable
proxy address

PROXY :10.199.212.2
PORT: 8080

host:web.blackberry.com
xhost:web.blackberry.com
put in http header

REMEMBER TO TICK ENABLE IP....IN DROIDVPN

Make sure your device is rooted
It is advisable you try it with a day subscription,  if you are okay with it, then go ahead for any subscription of your choice.