https://community.o2.co.uk/t5/Android/Sony-Xperia-arc-Sim-Network-unlock-pin/m-p/489140#M20181 <P>Getting the unlock code from O2 is the safest way.</P><P>&nbsp;</P><P>There are other ways of doing it BUT you can easily brick the phone if you dont know what your doing.</P> Mon, 17 Jun 2013 13:33:34 GMT Anonymous 2013-06-17T13:33:34Z https://community.o2.co.uk/t5/Android/Sony-Xperia-arc-Sim-Network-unlock-pin/m-p/489124#M20180 Hi does anyone know how I could go about getting a sim network unlock pin for my old phone as I wish to sell it &amp; I can't ever seem to get hold of O2 customer services <span class="lia-unicode-emoji" title=":confused_face:">😕</span> Mon, 17 Jun 2013 12:59:40 GMT https://community.o2.co.uk/t5/Android/Sony-Xperia-arc-Sim-Network-unlock-pin/m-p/489124#M20180 Anonymous 2013-06-17T12:59:40Z https://community.o2.co.uk/t5/Android/Sony-Xperia-arc-Sim-Network-unlock-pin/m-p/489140#M20181 <P>Getting the unlock code from O2 is the safest way.</P><P>&nbsp;</P><P>There are other ways of doing it BUT you can easily brick the phone if you dont know what your doing.</P> Mon, 17 Jun 2013 13:33:34 GMT https://community.o2.co.uk/t5/Android/Sony-Xperia-arc-Sim-Network-unlock-pin/m-p/489140#M20181 Anonymous 2013-06-17T13:33:34Z