https://community.o2.co.uk/t5/Android/rnadom-phone-malfunction-please-help-me/m-p/440334#M16100 <P>a friend gave me a motorola atrix it worked fine with my o2 sim for a bit but now i permanently have no signal and if i try to make a call i get a message saying 'not registered with network' how do i fix this?</P> Thu, 04 Apr 2013 18:44:29 GMT Anonymous 2013-04-04T18:44:29Z https://community.o2.co.uk/t5/Android/rnadom-phone-malfunction-please-help-me/m-p/440334#M16100 <P>a friend gave me a motorola atrix it worked fine with my o2 sim for a bit but now i permanently have no signal and if i try to make a call i get a message saying 'not registered with network' how do i fix this?</P> Thu, 04 Apr 2013 18:44:29 GMT https://community.o2.co.uk/t5/Android/rnadom-phone-malfunction-please-help-me/m-p/440334#M16100 Anonymous 2013-04-04T18:44:29Z https://community.o2.co.uk/t5/Android/rnadom-phone-malfunction-please-help-me/m-p/440342#M16102 Either your sim has failed or the phone has. Try removing the sim, wipe it and put it back. Next try a new sim, lastly replace the phone. Thu, 04 Apr 2013 18:46:34 GMT https://community.o2.co.uk/t5/Android/rnadom-phone-malfunction-please-help-me/m-p/440342#M16102 MI5 2013-04-04T18:46:34Z