youll need root and your msl in order to access the port part of the menu as well as making any changes with qpst

 

My bad i used that tool myself to get msl and could of sworn i granted it root rights. must of been mistaken. But yea you do need your msl to get into it and make edits

**Edit** Thats also a good way to get your diagnostic drivers installed on your pc without much hassle

 

Here is another easy method for getting msl:

From your computer:

Code (Text):

1. adb logcat | grep -P 'sec_code'

If nothing comes up right away, then do ##3282# on your phone, and touch any of the options that come up

note2: the msl is the 6 digit number in your output

edit: looks like terminal emulator method no longer works

edit2: looks like neither of them work anymore lol