Programmatically enter secret code like *#*#4636#*#* on Android

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Is it also possible to open this stuff programmatically?

Yes:

    Intent in = new Intent(Intent.ACTION_MAIN);
    in.setClassName("com.android.settings", "com.android.settings.TestingSettings");
    startActivity(in);

You just need to watch logcat output to learn what this magic combination actually opens:

I/ActivityManager(31362): START {act=android.intent.action.MAIN
flg=0x10000000 cmp=com.android.settings/.TestingSettings} from pid
4257

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