Run EngineerMode from adb

# adb shell am start -a android.intent.action.MAIN -n com.mediatek.engineermode/.EngineerMode

How To create this magic cmd:

• google query: how to run apk from adb
  on page N2 found this:
  www.android.pk: Launch app through adb shell - Android News & Updates
  This is about how to launch android application from the adb shell.
  ... How to Install Android APK on Dell Streak with SDK Commands.
  
• From site I get and run this:

  # adb shell am start -a android.intent.action.MAIN -n com.android.browser/.BrowserActivity

  And I'm happy!
• Next step get apk and find start points.

  # adb pull /system/app/Browser.apk ./

  # adb pull /system/app/EngineerMode.apk ./

• Find working.

  # aapt l -a ./Browser.apk | grep BrowserActivity

   A: android:name(0x01010003)=".EngineerMode" (Raw: ".EngineerMode")
    A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
  
• Find like working.

  # aapt l -a ./EngineerMode.apk | grep A\:\ android\:name

   A: android:name(0x01010003)=".EngineerMode" (Raw: ".EngineerMode")
    A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
  
• Search name like com.android.browser.

  # aapt l -a ./EngineerMode.apk | less

• Create cmd like working.

  # adb shell am start -a android.intent.action.MAIN -n com.mediatek.engineermode/.EngineerMode