enable home key on android

1.
cd /data/data/com.android.providers.settings/databases
sqlite3 settings.db
INSERT INTO secure (name, value) VALUES ('device_provisioned', 1);
UPDATE "secure" SET value='0' WHERE name='device_provisioned';

2.vi mydroid/build/target/board/system.prop
加上 keyguard.no_require_sim=1

3.
development/apps/SdkSetup/Android.mk
LOCAL_MODULE_TAGS := eng


4. frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java