The Stk apk is a application to handle SIM Tool Kit application in the SIM.
This apk is pre-built by MediaTek internal.
WHAT IT DOES?
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The Stk apk is a application to handle proactive commands from SIM
for display information included in the commands and interact with user
and response the user's input to SIM.
HOW IT WAS BUILT?
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It will pre-built automatically by build process.
HOW TO USE IT?
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It always appears in launcher (app grid) for open market project.
The application name is 'SIM Toolkit'. You can see a menu list for the SIMs
if you inserted two SIMs or more and select one of SIMs and you can see a
Stk menu for the SIM. If you insert only one SIM, you will see a STK menu
for ths SIM when you enter Stk apk.