ERI file to set LTE network name (fix "Roaming Indicator OFF" problem with LineageOS capricorn).

eri.xml

<?xml version="1.0" encoding="UTF-8"?>
<EriFile VersionNumber="1357" NumberOfEriEntries="14" EriFileType="1">
    <CallPromptId Id="0" CallPromptText="CallPromptId0" />
    <CallPromptId Id="1" CallPromptText="CallPromptId1" />
    <CallPromptId Id="2" CallPromptText="CallPromptId2" />
    <EriInfo RoamingIndicator="0" IconIndex="1" IconMode="0" EriText="CT-LTE Roam" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="1" IconIndex="1" IconMode="0" EriText="CT-LTE" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="2" IconIndex="1" IconMode="0" EriText="CT-LTE Roam" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="65" IconIndex="65" IconMode="0" EriText="T-CDMA 65" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="66" IconIndex="1" IconMode="0" EriText="T-CDMA Ext 66" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="67" IconIndex="67" IconMode="0" EriText="T-CDMA Ext 67" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="68" IconIndex="68" IconMode="0" EriText="T-CDMA Roam 68" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="69" IconIndex="69" IconMode="1" EriText="T-CDMA Ext 69" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="70" IconIndex="70" IconMode="1" EriText="T-CDMA Roam 70" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="71" IconIndex="1" IconMode="0" EriText="T-CDMA Ext 71" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="72" IconIndex="72" IconMode="0" EriText="T-CDMA Ext 72" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="73" IconIndex="73" IconMode="0" EriText="T-CDMA Roam 73" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="74" IconIndex="74" IconMode="1" EriText="T-CDMA Ext 74" CallPromptId="0" AlertId="0" />
    <EriInfo RoamingIndicator="75" IconIndex="75" IconMode="1" EriText="T-CDMA Roam 75" CallPromptId="0" AlertId="0" />
</EriFile>

1. Edit the ERI file (replaces CT-LTE with expected carrier name).
2. Install the ERI file (see following instructions.
3. Reboot to take effect.

ERI file should be placed in /data:

adb push eri.xml /data/local/tmp/eri.xml
adb shell 
su
mv /data/local/tmp/eri.xml /data/eri.xml
chown system:system /data/eri.xml
chmod 644 /data/eri.xml