https://community.sony.com.mk/t5/xperia-archive/phine-locked/m-p/3439389#M512663 <P>dear sir&nbsp;</P><P>i have xperia m c-1904 phone</P><P>my phone is working properly before i changed simcard</P><P>after that phone is start but want security password</P><P>i have no password or never use password in phone</P><P>plese help me to unlock phone</P> Wed, 16 Mar 2016 17:21:15 GMT garg 2016-03-16T17:21:15Z https://community.sony.com.mk/t5/xperia-archive/phine-locked/m-p/3439389#M512663 <P>dear sir&nbsp;</P><P>i have xperia m c-1904 phone</P><P>my phone is working properly before i changed simcard</P><P>after that phone is start but want security password</P><P>i have no password or never use password in phone</P><P>plese help me to unlock phone</P> Wed, 16 Mar 2016 17:21:15 GMT https://community.sony.com.mk/t5/xperia-archive/phine-locked/m-p/3439389#M512663 garg 2016-03-16T17:21:15Z https://community.sony.com.mk/t5/xperia-archive/phine-locked/m-p/3439390#M512664 <P><A href="https://community.sony.co.uk/t5/user/viewprofilepage/user-id/738538">@garg</A></P><P>If you were using an antivirus app it could cause this, or it could be that your phone its SIM locked to a network/carrier and it request the code to unlock it since you are using a different SIM card, could you elaborate?</P> Wed, 16 Mar 2016 18:11:02 GMT https://community.sony.com.mk/t5/xperia-archive/phine-locked/m-p/3439390#M512664 Uliwooly 2016-03-16T18:11:02Z