disable lockscreen

diff --git a/device/samsung/avl7420/device.mk b/device/samsung/avl7420/device.mk
index d9497b1..ccee393 100755
--- a/device/samsung/avl7420/device.mk
+++ b/device/samsung/avl7420/device.mk
@@ -576,6 +576,8 @@ PRODUCT_PROPERTY_OVERRIDES += \
         ro.config.hifi_audio=1 \
         ro.config.media_vol_steps = 60
 endif
+ PRODUCT_PROPERTY_OVERRIDES += ro.lockscreen.disable.default=true
 
 PRODUCT_PACKAGES +=        \
                libusb_1.0 \
diff --git a/frameworks/base/packages/SettingsProvider/res/values/defaults.xml b/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
index ff523a8..6e3e3b0 100644
--- a/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
+++ b/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
@@ -78,7 +78,7 @@
     /system/media/audio/ui/Trusted.ogg
     /system/media/audio/ui/WirelessChargingStarted.ogg
 
-    false
+    true
     false
     1