Is your mobile connection is weak or sporadic in your neighborhood? As carriers move to 4G LTE, coverage can not be good in some areas of the city. You can switch from 3G to 4G for consistent signal.
is easy to change or switch to 3G LTE 4G in Samsung Galaxy S3. It can also work for most phones. You do not need to root the phone.
on your Android phone, go to Settings> More> Mobile networks> Make sure that “Use Packet Data” is checked. This option allows the phone to connect to your wireless network operator.
Network Mode Tap to LTE / CDMA or CDMA select. If you LTE / CDMA, it will connect to LTE (4G), when available. You should use this option if you have not ideal option selected. But if you have problems with network connection problems
select the option to connect to the CDMA 3G network only.
CDMA option is also useful if you believe that your battery is due to LTE connection.Drainage
android app 3G/4G You can try switching to quickly switch between 3G and 4G. This Android app may not work on all Android applications.View the original article