I am using below adb commands for changing preferred network mode to GSM where value is 1, Can any one give the values for other modes like - GWL (GSM/WCDMA/LTEONLY) - LTE ONLY - WCDMA PREFERRED etc
adb root
adb wait-for-devices
adb shell sqlite3 /data/data/com.android.providers.settings/databases/settings.db "update global SET value=12 WHERE name='preferred_network_mode'"
adb shell sqlite3 /data/data/com.android.providers.settings/databases/settings.db "select value FROM secure WHERE name='preferred_network_mode'"
adb reboot