[Verizon Samsung Galaxy S 4] colorsharpkid:
Solved omg thankfully op please mark as solved

I solved the issue maybe not entirely but I made it work still baffels me as to why this had to be done this way anyways and data is still showing e and g not h as it does on my other s4 Verizon but I don't care its freakin working at least

heres what I did

factory reset from recovery menu 2 times

clear cache from recovery menu

upon bootup top left top right bottom left bottom right taps then vol up bypass activation wizard

input apn

name H2O Wireless

apn att.mvno

left rest blank at this point yes I kno this apn may be incomplete but used just for int testing

tried a few times switching back n forth on cdma global and utms gsm no go

but I did get sim read num correctly service says att not h2o correctly witch read h2o on other s4 ?? whatever

follow this guide to root mk2 http://xdaforums.com/showthread.php?t=2565758

omg thank u m12 or whoever is the respectfull builder of this saferoot

before hand u must enable developers menu by hitting model or baseband 11 times in phone info menu back out and u will see another menu above phone info now developer menu

turn on mock location debug mode and disable verify apps

make sure kies is installed for proper usb drivers first and reboot laptop win7 connect over usb verify phone seen correctly in debug mode

turn phone display timeout to 10mins first it SHOULD NOT GO BLACK ON U DURRING THIS

RUN THE BAT FILE YOU EXTRACTED IN A FOLDER FROM THE ABOVE POST

wach phone screen accept trust this connection ..upon first try nothing happen on bat cmd windows on pc so I exit the bat cmd window and again ran it this time it saw phone ran script and rebooted BE PATIENT THIS IS NOT DONE YET

aftr it says verify you have su

find su while still connected to usb on pc open make sure ur on wifi let it update normal mode

yes to knox disable hot ok on prompt when its done

go back to cmd bat window click inside windows with mouse then hit any key on keyboard it then trys to do something and ur phone screen shows a prompt for su grant it let it continue ignore security warning pop ups

enventually it will lad you to finish and hit any key again and reboot verify the bat windows has completed and is not asking u to do more steps

after words you should be rooted on mk2 and have this all setup

beaware just caus eyou have su you are not done u need to let this bat finish all its steps it will reboot your phone and you will continue to follow bat windows steps !!!!

ok that's done disconnect from pc when bat window finished and closes

login to google play over wifi

look for fx explorer install it

go back look for fx root addon insall it

open fx explorer grant it su permission if asked

hit root file browser when u open fx explorer grant it permission if asked

now locate the efs folder , now locate the carrier folder

you should see 1 file called secret menu

tap it and fx explorer wil prompt u to open it somehow choos the text editor

now blue screen comes up and in caps u see DISABLED erase it and in all capps type ON

now press back softkey and choose save file when asked

now completely back out and hold pwr button and restart phone

now when phone boots again I saw signal bars or no service then At&T when I should see h2o but whatever

I go to dialer and type *#0011# the code will disappear and you may need to just be patient and wait up to 30 secs for this secret menu to appear showing signal status I sat there and watched it idle on band 5 and info change back and forth I hit left softkey and choos eback but nothing happen then I see the G then E then H icon for data so I hit hom ebutton back out and try to place a call

calls goes thru not suprized after words try another call and nothing happens no ring no connect

I think its not handing off the gsm bands correctly or something cause the data icons dontcome back so I figure if I can set it to gsm forced mode maybe and that's what works so heres what I did now to force gsm active all bands witch results in calls placed over and over again correctly dat working finaly but only seeing e for right now but again who cares its damn working at least

go to dialer again and type *#27663368378# and secret menu appears

NOW DONT GO MESSING WITH ANYTHING IN HERE R UR GOING TO BE SORRY U DID DONT MESS WITH SOMTHING JUST TO TRY IT

PEOPLE WHO HAVE HACKED THIER BAD WATEVER PHONES DO NOT RELOAD NV OR ANYTHING IM JUST SAYING

NOW WHILE IN SECRET MENU HIT 1 UMTS NOW HIT I believe 6 common and find the gsm set band control select gsm bands all

im unable to find this exact menu again because I think I set it now it doesn't display it anymore but I see the set cdma band under wcdma menu

im sorry but all I can say to do is look around until u find these option for set gsm mode band left light up softkey to open menu and select back to go around looking don't set anything or choose anything else

if u acc press the back key u will exit the sercret menu try try again untillu find it .... if you cant be carefull don't even try any of this as I can not be held responsible for anything u go screw up

all I know is now after 35 mins my service is still active and making calls makes e go away ending calls brings I back I can make and receiv emulti calls now and altho im only seeing e when I can see h on the other s4 I don't even care what other options I may need to set or apn at least its working

I will try to remove sim reboot insert sim reboot see if this all sticks or needs to be done over and over everytime all I can say is I can not believe this phone is acting so weird or what its issue is and that no wher eonline I mean no where did I find anything even related to this type of issue

I don't know why global or gsm utms modes don't work correctly as they do on the other s4 I have or why I needed to hard select all gsm band option in secret menu

ps phone info force closes and I don't know if that would have even worked phone info is a old app we all used to use to force band selection before Verizon came out with 4.2 and activated auto global mode pop up window I tried to get it from playstore and said not avail for my phone I tried to install it from apk and it force closed so as far as I know my secret menu way is the only thing tht has helped

I hope u like reading a lot lol

youtube video for ref http://www.youtube.com/watch?v=mqmIq7_RQh0

xda forum link for quick ref http://xdaforums.com/showthread.php?t=2565758