Gsm unlock topic

This was original made for the ls990 but like 10 people from this device reported this working so here it is:
IT IS NOT MY FAULT IF YOUR DEVICE(S) BREAK/MAKE A BACKUP IN RECOVERY TO GO BACK TO!

Step 1:
Download "Shortcut master" pro or lite doesn't matter

Step 2:
Go into "Shortcut master" and click the little 3 dotted menu and click "Search..."

Step 3:
Click the little drop down in the upper left corner and select "System apps"

Step 4:
Then on the line labeled "Enter text to search" type "IOT" then click "Search"

Step 5:
Click on the option that says "com.lge.SprintHiddenMenu.iot.IotHiddenMenuMai n" some options will come up click on the little start that says "Favorite" and then click "Launch" and grant shortcut master su permisson

Step 6:
Click on Network mode and use the drop down menu to scroll down and select "GSM only" If done your signal bars should have a little red "x" over them

Step 6
Click the back button until you get back to "Shortcut master" then search for "apn"

Step 7:
Click on "com.lge.hiddenmenu.vzw_only.ApnSettings" and "Favorite and Launch it"

Step 8:
Edit any apn but the one labeled "Internet" then the one you choose to edit you have to put in the settings for the carrier(s) you want.

Step 9:
Save your settings and reboot

Step 10:
Go to settings>roaming>scroll down for gsm options
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Revert:
Step 1: Go back into your IOT settings and select system selection and change it one of the cdma options

Step 2: Go back to the apn settings and swap them back to "Internet"

Step 3 Reboot and have cdma again
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Working on:
You tell me (all working one)
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In order for it to work I will need to find the correct build prompt edits and I am working hard to find those! for now please stick to stock rom fix. If you know the code please PM me and I will test it then I post it if all good

*Please donate it will help me to further research on this topic*