Can anybody help me stand why my phone has a SIM network unlock PIN request? I rooted the phone to avoid this.

[yooper1210]

i am not very good with computers. i have the glxy s4 and i rooted it so that i could use the new service i bought but i cant figure it out and its bumming me out

 

[Titillating]

Rooting your phone does nothing for that. If your phone is locked to a specific network, you will need to contact that service provider in order to purchase an unlock code.

 

[samyohang limboo]

i have a samsung mobile SM-G360H but i dont know the exact network register pin
I shown it many places but they also dont know so please help me