Service Mode Main Menu blocked 910T

I want to restart GPS signal thru Service Mode by doing following steps:
-> type *#0011#
service mode shows up
-> menu press Back
-> menu Key Input enter Q
-> menu Key Input enter 0000
wait

After performing fallowing steps I can see "quick flash screen" it's like want to show me Main Menu but it can't.
Is T-mobile blocking access to main menu? I read on S4 to overcome this new modem is needed.
I'm on COG2, Emotion kernel r21, Rapture 8.2 ROM