https://community.sony.ba/t5/portable-audio/using-xperia-with-sim/m-p/3908038#M12845 <P>Hello <a href="https://community.sony.ba/t5/user/viewprofilepage/user-id/1291636523">@SurtseyAna</a>, I'm afraid it seems a hardware issue which requires physical inspection. But you can try a factory data reset first.</P><P>&nbsp;</P><P>A also came across this link: <A href="https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader/" target="_blank">https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader/</A></P> Wed, 29 Mar 2023 15:57:20 GMT Piscie 2023-03-29T15:57:20Z https://community.sony.ba/t5/portable-audio/using-xperia-with-sim/m-p/3907672#M12839 <P>I have been happily using my old Xperia T as an MP3 player. Not having a SIM didn't bother it until I unlocked the boot-loader.<BR />Now the phone issues a warning: As there is no SIM the phone surmises that it has been accidentally powered on during shipping and will switch off in 15 minutes.<BR /><BR />Any way to fix this?</P> Sat, 25 Mar 2023 14:32:21 GMT https://community.sony.ba/t5/portable-audio/using-xperia-with-sim/m-p/3907672#M12839 SurtseyAna 2023-03-25T14:32:21Z https://community.sony.ba/t5/portable-audio/using-xperia-with-sim/m-p/3908038#M12845 <P>Hello <a href="https://community.sony.ba/t5/user/viewprofilepage/user-id/1291636523">@SurtseyAna</a>, I'm afraid it seems a hardware issue which requires physical inspection. But you can try a factory data reset first.</P><P>&nbsp;</P><P>A also came across this link: <A href="https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader/" target="_blank">https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader/</A></P> Wed, 29 Mar 2023 15:57:20 GMT https://community.sony.ba/t5/portable-audio/using-xperia-with-sim/m-p/3908038#M12845 Piscie 2023-03-29T15:57:20Z