There is no activation mechanism. Telenor 3G is enabled by default. Use Telenor 3G, you just need to be in a 3G coverage area and a 3G handset capable of. you must configured telenor 3g settings .
Telenor 3G internet setting for All handsets
Mobilink 3G package detail
Ufone 3G package detail
Telenor 3G package detail
Zong 3G and 4G package detail
Warid 4G LTE package detail
3G/4G supported mobile phones list