https://community.sony.rs/t5/xperia-archive/4g/m-p/3412203#M499003 <P><A href="https://community.sony.co.uk/t5/user/viewprofilepage/user-id/600220">@Javediqbal</A></P><P>Only the D5503 it's 4G LTE ready</P><DIV>UMTS HSPA+ 850 (Band V), 9</DIV><DIV>00 (Band VIII), 1700 (Band IV),</DIV><DIV>1900 (Band II), 2100 (Band I) MHz</DIV><DIV>GSM GPRS/EDGE 850, 900, 1800, 1900 MHz</DIV><DIV>LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20)</DIV><DIV>&nbsp;</DIV><DIV>&nbsp;</DIV> Sun, 16 Aug 2015 17:53:46 GMT Uliwooly 2015-08-16T17:53:46Z https://community.sony.rs/t5/xperia-archive/4g/m-p/3412201#M499001 MY Sony Xperia z1 is not supported 4g is any update or something else required to start 4g network on phone Sun, 16 Aug 2015 08:56:15 GMT https://community.sony.rs/t5/xperia-archive/4g/m-p/3412201#M499001 Javediqbal 2015-08-16T08:56:15Z https://community.sony.rs/t5/xperia-archive/4g/m-p/3412202#M499002 <P>You need a compatible device, SIM and subscription. What variant of Z1 do you have?</P> Sun, 16 Aug 2015 09:00:06 GMT https://community.sony.rs/t5/xperia-archive/4g/m-p/3412202#M499002 _alexdon_ 2015-08-16T09:00:06Z https://community.sony.rs/t5/xperia-archive/4g/m-p/3412203#M499003 <P><A href="https://community.sony.co.uk/t5/user/viewprofilepage/user-id/600220">@Javediqbal</A></P><P>Only the D5503 it's 4G LTE ready</P><DIV>UMTS HSPA+ 850 (Band V), 9</DIV><DIV>00 (Band VIII), 1700 (Band IV),</DIV><DIV>1900 (Band II), 2100 (Band I) MHz</DIV><DIV>GSM GPRS/EDGE 850, 900, 1800, 1900 MHz</DIV><DIV>LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20)</DIV><DIV>&nbsp;</DIV><DIV>&nbsp;</DIV> Sun, 16 Aug 2015 17:53:46 GMT https://community.sony.rs/t5/xperia-archive/4g/m-p/3412203#M499003 Uliwooly 2015-08-16T17:53:46Z