I'm trying to change network mode from CDMA auto PRL to CDMA only. I used to change it through phone info app but after upgrading to I535VRUCML1, it is not working anymore. I have seen in the Google play a note from the developer "sc@taiwan" that the app is not working with Samsung 4.3.
I have also enabled the hidden menu but the code *#*#4636#*# is not working.
My device is already Rooted.
The reason why I want to change from CDMA Auto PRL to CDMA only is that in some areas in my country (in Yemen) the battery will drop very quickly if I'm not on CDMA only.