1) dial *123*10# to see the initial mb and jot it down e.g 2112.00mb i.e about 2.02gig. (necessary for later calculations)
2) buy and load an extra airtel #100 naira card
3) after loading dial *141*712*11#(this tops your initial subscription with 10mb BLACKBERRY daily plan),then dial the code in step 1 to know your new mb and jot it down now minus 10mb from new mb value and that will give u d value of your initial mb b4 u got d extra 10mb.jot it down
4) then place the sim-card in your modem (for PC), your android phone,etc nd connect,it will connect..
5) now(while continuously checking ur mb wit step 1 code) browse for a very long time until uv completely exhausted this new 10mb(the calculation in the above steps will help u determine this) and av started using the initial 2gig mb, still continue browsing for sometime b4 u stop (you can exhaust an exta 3 or 4mb from the 2gig..after this the line will always browse any time u connect(ignore step 5 and u are bak 2 square 1).....diz what am using ryt nw....