SGS3 LTE (GT-i9305T) Set preferred network type

[zillah2004]

http://androidforums.com/htc-wildfire-s/465543-potentially-very-helpful-battery-tip.html

4.0 ice cream sandwich - Change WCDMA to GSM automatically - Android Enthusiasts Stack Exchange

Issue 1284 - android - Switch between cell network types (2G/3G/LTE) automatically based on usage patterns - Android Open Source Project - Issue Tracker - Google Project Hosting

Hi Experts

Looking for a widget that performs same function to : *#*#4636#*#* --> 'Phone Information' --> 'Set preferred network type'

Because above code is not working on my both phones SGS3 LTE (GT-i9305 and GT-i9305T)


Thanks