My mobile site provides you information about how to unlock android smartphone, what is mobile locking and how to check smartphone is locked or not. How to get sim network unlock code for smartphone, different kind of cellphone unlock codes and requirement of generating unlock code for android phone.
It also guide you about how to remove sim locking messages like sim restricted,sim card not accepted by generating smartphone sim unlocking codes and requirement for unlock codes when you face invalid microchip or contact gsm service provider msgs.
this method are applicable to all kinds of mobile like lg, samsung,nokia, htc and all models of at&t and tmobile.
At&t sell many smartphone with sim locked condition it sell lg g2, lg g3, lg g5 sim locked and lg v10 at&t sim locked and lg k10 smartphone locked condition.
t-mobile also sell many of samsung mobile, galaxy android smartphone with sim locked condition. it sell galaxy note5 sim locked, galaxy note4, galaxy note3 sim locked and to unlock all this mobile you need tmobile sim unlock codes or sim network unlock pin for at&t t-mobile sim locked phone.