Bhaio aur Behno,

Mere paas ek N 70 hai, jo sim dalne par "sim not valid" de raha hai, JAF se read karne par JAF ki window men "Lock 1 closed" bata raha hai, aur unlock karne par "unlocking error" bata raha hai. IMEI : 354551-01-447806-3 hai.

Please any person has any idea to unlock this set, Please share your idea or expertise, please help me.

Shukria,