topic TMobile US Low Signal Strength issues on SGP771 in Tablets https://community.sony.hu/t5/tablets/tmobile-us-low-signal-strength-issues-on-sgp771/m-p/3523703#M8466 <P><SPAN>Greetings all, thanks for any help!</SPAN><BR /><BR /><SPAN>I got my Xperia Z4 LTE (US Version?) Tablet, after being a longtime owner of a Xperia Z2 LTE Tablet which I left on an airplane to never see again. </SPAN><IMG src="https://community.sony.hu/f35a37306f2d41c3198ebb25f01275e265a8ba94/68747470733a2f2f666f72756d2e7864612d63646e2e636f6d2f696d616765732f736d696c6965732f66726f776e2e676966" border="0" alt="" title="Frown" /><BR /><BR /><SPAN>And now I'm on a replacement unit experiencing some odd behavior that I chalked up to being a defective unit, but getting the same behavior on the replacement.</SPAN><BR /><BR /><SPAN>My Z2 would always show full bars LTE here in Los Angeles, but the Z4 is showing LTE no-to-low bars sitting right next to my Tmobile LG G4 showing 4GLTE with full bars.</SPAN><BR /><BR /><SPAN>The weird thing is if I go into the About/Signal strength in the settings it shows practically the same signal strength (-dbm) on both my Tmobile LG G4 and the Xperia Z4.</SPAN><BR /><BR /><SPAN>If I do speed test and get similar results on both devices.</SPAN><BR /><BR /><SPAN>But, If I switch to WCDMA preferred I get full bars! Weird.</SPAN></P><P>I tried the LTE Discovery app and discovered some interesting information about frequencies being used:</P><P><BR /><SPAN>My TMobile LG G4 shows:</SPAN><BR /><SPAN>DL EARFCN 19500-2399</SPAN><BR /><SPAN>UL EARFCN 19950-20399</SPAN><BR /><SPAN>DL Freq: 2110mhz-2155mhz</SPAN><BR /><SPAN>UL Freq: 1710mhz-1755mhz</SPAN><BR /><SPAN>LTE BAND 4</SPAN><BR /><BR /><SPAN>My Xperia Z4 shows:</SPAN><BR /><SPAN>DL EARCFN: 2300</SPAN><BR /><SPAN>UL EARCFN: 20300</SPAN><BR /><SPAN>DL Freq: 2145.0mhz</SPAN><BR /><SPAN>UL Freq: 1745mhz</SPAN><BR /><SPAN>LTE BAND 4</SPAN><BR /><BR /><SPAN>It appears that the TMobile branded LG G4 is using a range of frequencies, and Xperia Z4 is locked on a single frequency, which may explain the low signal bars issue.</SPAN><BR /><BR /><SPAN>Can anyone confirm this? Is there a way to update the frequency ranges on the Xperia Z4 Tablet?</SPAN></P><P><BR /><SPAN>Anyone have an idea what I am seeing? Is this normal? I mean it seems to work ok, but I can't handle looking at my tablet with no to low signal strength!</SPAN></P><P><SPAN>Thanks all for viewing!</SPAN></P><P><SPAN>-b</SPAN></P> Tue, 21 Feb 2017 22:03:35 GMT Moodock 2017-02-21T22:03:35Z TMobile US Low Signal Strength issues on SGP771 https://community.sony.hu/t5/tablets/tmobile-us-low-signal-strength-issues-on-sgp771/m-p/3523703#M8466 <P><SPAN>Greetings all, thanks for any help!</SPAN><BR /><BR /><SPAN>I got my Xperia Z4 LTE (US Version?) Tablet, after being a longtime owner of a Xperia Z2 LTE Tablet which I left on an airplane to never see again. </SPAN><IMG src="https://community.sony.hu/f35a37306f2d41c3198ebb25f01275e265a8ba94/68747470733a2f2f666f72756d2e7864612d63646e2e636f6d2f696d616765732f736d696c6965732f66726f776e2e676966" border="0" alt="" title="Frown" /><BR /><BR /><SPAN>And now I'm on a replacement unit experiencing some odd behavior that I chalked up to being a defective unit, but getting the same behavior on the replacement.</SPAN><BR /><BR /><SPAN>My Z2 would always show full bars LTE here in Los Angeles, but the Z4 is showing LTE no-to-low bars sitting right next to my Tmobile LG G4 showing 4GLTE with full bars.</SPAN><BR /><BR /><SPAN>The weird thing is if I go into the About/Signal strength in the settings it shows practically the same signal strength (-dbm) on both my Tmobile LG G4 and the Xperia Z4.</SPAN><BR /><BR /><SPAN>If I do speed test and get similar results on both devices.</SPAN><BR /><BR /><SPAN>But, If I switch to WCDMA preferred I get full bars! Weird.</SPAN></P><P>I tried the LTE Discovery app and discovered some interesting information about frequencies being used:</P><P><BR /><SPAN>My TMobile LG G4 shows:</SPAN><BR /><SPAN>DL EARFCN 19500-2399</SPAN><BR /><SPAN>UL EARFCN 19950-20399</SPAN><BR /><SPAN>DL Freq: 2110mhz-2155mhz</SPAN><BR /><SPAN>UL Freq: 1710mhz-1755mhz</SPAN><BR /><SPAN>LTE BAND 4</SPAN><BR /><BR /><SPAN>My Xperia Z4 shows:</SPAN><BR /><SPAN>DL EARCFN: 2300</SPAN><BR /><SPAN>UL EARCFN: 20300</SPAN><BR /><SPAN>DL Freq: 2145.0mhz</SPAN><BR /><SPAN>UL Freq: 1745mhz</SPAN><BR /><SPAN>LTE BAND 4</SPAN><BR /><BR /><SPAN>It appears that the TMobile branded LG G4 is using a range of frequencies, and Xperia Z4 is locked on a single frequency, which may explain the low signal bars issue.</SPAN><BR /><BR /><SPAN>Can anyone confirm this? Is there a way to update the frequency ranges on the Xperia Z4 Tablet?</SPAN></P><P><BR /><SPAN>Anyone have an idea what I am seeing? Is this normal? I mean it seems to work ok, but I can't handle looking at my tablet with no to low signal strength!</SPAN></P><P><SPAN>Thanks all for viewing!</SPAN></P><P><SPAN>-b</SPAN></P> Tue, 21 Feb 2017 22:03:35 GMT https://community.sony.hu/t5/tablets/tmobile-us-low-signal-strength-issues-on-sgp771/m-p/3523703#M8466 Moodock 2017-02-21T22:03:35Z Re: TMobile US Low Signal Strength issues on SGP771 https://community.sony.hu/t5/tablets/tmobile-us-low-signal-strength-issues-on-sgp771/m-p/3523704#M8467 <P>Mines the same shows less bars but actual DB signal is better than other device on T mobile. Wish VoLTE menu worked.&nbsp;</P> Thu, 23 Feb 2017 04:57:57 GMT https://community.sony.hu/t5/tablets/tmobile-us-low-signal-strength-issues-on-sgp771/m-p/3523704#M8467 Trinitron 2017-02-23T04:57:57Z