https://community.sony.co.uk/t5/xperia-archive/sim-card-locked-when-going-abroad/m-p/3440930#M513588 It could mean roaming is not set up correctly on your account, you may need to speak to your operator.<BR />Have you tried the sim in another phone? Wed, 27 Apr 2016 08:12:51 GMT Lord_viridis 2016-04-27T08:12:51Z https://community.sony.co.uk/t5/xperia-archive/sim-card-locked-when-going-abroad/m-p/3440929#M513587 <P>When I travel to another country my telephone says that the sim card is locked. I can still use Wi-Fi. I haven't made any changes in the settings. What may be the problem??&nbsp;</P> Wed, 27 Apr 2016 07:58:41 GMT https://community.sony.co.uk/t5/xperia-archive/sim-card-locked-when-going-abroad/m-p/3440929#M513587 pellejons 2016-04-27T07:58:41Z https://community.sony.co.uk/t5/xperia-archive/sim-card-locked-when-going-abroad/m-p/3440930#M513588 It could mean roaming is not set up correctly on your account, you may need to speak to your operator.<BR />Have you tried the sim in another phone? Wed, 27 Apr 2016 08:12:51 GMT https://community.sony.co.uk/t5/xperia-archive/sim-card-locked-when-going-abroad/m-p/3440930#M513588 Lord_viridis 2016-04-27T08:12:51Z