Originally Posted by bit1
Hello. Thanks for the guide OP. Been trying to unlock a T-Mobile S4 for a friend. The phone was on 4.4.4 and has Knox. I've Odin the amdl modem and it's visible in settings, about but no matter what I do his phone won't bring up the service menu. I even Odin his phone completely back to AMDL, MK2, I've tried them all and never get a service menu to pop up when I enter the code. Is his phone unable to be unlocked because of his initial upgrade to 4.4.4 or are there other steps I can take to get that menu to show? Thank you
heres a method that i noticed didnt get mentioned much in the forums. I have a Tmobile SGH-M919 on 4.4.2 downgraded from 4.4.4.
Step 1: *#0011# takes u to service Mode screen Step 2: Tap "menu" button, then select "Back" Step 3: Tap "menu" again, then select "Key Input" and type in a Capitol "Q" letter. Step 4: Tap "menu" again, select "Key Input" again and type in "0000".....be patient and wait for like 5-8 seconds and the Hidden "Service Menu" should magically appear. Then from there u can follow OPs original steps in his thread.