Sim Network lock Hard reset method of anroid 6

[naveen1bisht]

is there is any way to hard reset my xperia m5 dual android phone. it showing sim network lock message and also i have done all attempts, please suggest me i want to unlock my phone.

 

[Rukbat]

The phone is locked to the carrier it was made for. You'll have to have the phone on an account on that carrier and ask for an unlock code before you can use a SIM from another carrier, or you'll have to buy an unlock code from someone on eBay who sells them. (It's not your phone, or the manufacturer, or the carrier, it's all phones.)