My mother has forgotten her screen lock password. is a four digit number. how can I reset phone so she can use it again?
Follow this process only if mobile data is disabled and phone PIN locked. What I'm giving is Factory Reset method.
(Warning: Factory reset erases all the data from the phone permanently. Phones resets to its initial state.)
volume key up+middle home key+power key
volume key down+middle home key+power key
You can take the help of Google account to reset the password, first of all make sure the wifi/mobile data is turned on, if not then switch the data connection on by pressing and holding the power button until a pop up appears asking you wether to turn the device off, Data network mode use it to turn the mobile data switched on. Once mobile data gets switched on tap over the forgot password put your gmail account user ID and password you will be given the privilege to create new password. Follow the instruction and you are all done.