diff --git a/BoardConfig.mk b/BoardConfig.mk
index 2e03865..7d0ec10 100755
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -27,7 +27,7 @@ TARGET_SPECIFIC_HEADER_PATH := device/samsung/viennalte/include
 
 TARGET_OTA_ASSERT_DEVICE := viennalte,viennaltexx
 
-BLOCK_BASED_OTA:= false
+#BLOCK_BASED_OTA:= false
 
 # Bootloader
 TARGET_BOOTLOADER_BOARD_NAME := MSM8974
@@ -43,16 +43,6 @@ TARGET_KERNEL_SOURCE := kernel/samsung/viennalte
 TARGET_KERNEL_CONFIG := msm8974_sec_defconfig
 TARGET_KERNEL_VARIANT_CONFIG := msm8974_sec_viennalteeur_cm_defconfig
 
-# Shader cache config options
-# Maximum size of the  GLES Shaders that can be cached for reuse.
-# Increase the size if shaders of size greater than 12KB are used.
-MAX_EGL_CACHE_KEY_SIZE := 12*1024
-
-# Maximum GLES shader cache size for each app to store the compiled shader
-# binaries. Decrease the size if RAM or Flash Storage size is a limitation
-# of the device.
-MAX_EGL_CACHE_SIZE := 2048*1024
-
 # Audio
 BOARD_HAVE_NEW_QCOM_CSDCLIENT := true
 BOARD_HAVE_SAMSUNG_AUDIO := true
@@ -94,7 +84,9 @@ BOARD_HAVE_BLUETOOTH_BCM := true
 # Partitions
 BOARD_BOOTIMAGE_PARTITION_SIZE := 10485760
 BOARD_RECOVERYIMAGE_PARTITION_SIZE := 13631488
-BOARD_SYSTEMIMAGE_PARTITION_SIZE := 2810183680
+# eu size 2810183680
+# us size can be less, reduce system
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 2700000000
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 27847015936
 BOARD_FLASH_BLOCK_SIZE := 131072
 TARGET_USERIMAGES_USE_EXT4 := true
diff --git a/device.mk b/device.mk
index a12e3ef..5409efc 100755
--- a/device.mk
+++ b/device.mk
@@ -39,7 +39,6 @@ PRODUCT_COPY_FILES += \
     $(LOCAL_PATH)/audio/audio_platform_info.xml:system/etc/audio_platform_info.xml \
     $(LOCAL_PATH)/audio/audio_policy.conf:system/etc/audio_policy.conf \
     $(LOCAL_PATH)/audio/mixer_paths.xml:system/etc/mixer_paths.xml \
-    $(LOCAL_PATH)/audio/mixer_paths.xml:system/etc/mixer_paths.xml \
     $(LOCAL_PATH)/audio/audio_policy.conf:system/etc/audio_policy.conf
 
 # Camera
@@ -151,15 +150,9 @@ PRODUCT_PACKAGES += \
 #   $(LOCAL_PATH)/configs/p2p_supplicant_overlay.conf:system/etc/wifi/p2p_supplicant_overlay.conf
 
 # Boot animation
+TARGET_BOOTANIMATION_HALF_RES := true
 TARGET_SCREEN_WIDTH := 2560
-TARGET_SCREEN_HEIGHT := 1440
-
-# NFC doesn't exist
-
-PRODUCT_COPY_FILES_OVERRIDES += \
-   system/etc/permissions/com.android.nfc_extras.xml \
-   system/etc/permissions/android.hardware.nfc.xml \
-   system/etc/permissions/android.hardware.nfc.hce.xml
+TARGET_SCREEN_HEIGHT := 1600
 
 # Telephony
 PRODUCT_COPY_FILES += \
diff --git a/overlay/frameworks/base/core/res/res/xml/power_profile.xml b/overlay/frameworks/base/core/res/res/xml/power_profile.xml
index f96ff5c..a47c9d9 100755
--- a/overlay/frameworks/base/core/res/res/xml/power_profile.xml
+++ b/overlay/frameworks/base/core/res/res/xml/power_profile.xml
@@ -18,19 +18,25 @@
         <value>3.4</value>
     </array>
     <array name="cpu.speeds">
-        <value>12000000</value>
-        <value>10000000</value>
-        <value>800000</value>
-        <value>500000</value>
-        <value>200000</value>
+        <value>2265600</value>
+        <value>1782000</value>
+        <value>1497600</value>
+        <value>1190400</value>
+        <value>960000</value>
+        <value>729600</value>
+        <value>422400</value>
+        <value>300000</value>
     </array>
     <item name="cpu.idle">4</item>
     <array name="cpu.active">
-        <value>577</value>
-        <value>408</value>
-        <value>249</value>
-        <value>148</value>
-        <value>55</value>
+        <value>399</value>
+        <value>308</value>
+        <value>264</value>
+        <value>190</value>
+        <value>174</value>
+        <value>102</value>
+        <value>72</value>
+        <value>46</value>
     </array>
     <item name="battery.capacity">9500</item>
     <array name="wifi.batchedscan">