How to lock or unlock or erase your lost android

this tutorial is show you how to lock or unlock

or erase your lost android mobile phone

using android device manager

make sure you have a pc

and make sure email you know what you

intered your device

now launch the web brawser and go to foloowing link

https://www.google.com/android/devicemanager

now login your same email id already you intered your

lost android phone

now choose your device who lock or unlock

now click lock and inter any password you want

confirm password and click submit

if you want erase simply click erase finaly

you have done