diff --git a/configs/device_features/alioth.xml b/configs/device_features/alioth.xml
index 615b5eb..4a9adbf 100644
--- a/configs/device_features/alioth.xml
+++ b/configs/device_features/alioth.xml
@@ -476,6 +476,8 @@
     <bool name="support_hangup_while_screen_off">true</bool>
     <!-- whether support dc backlight -->
     <bool name="support_dc_backlight">false</bool>
+    <!-- whether support secret dc backlight -->
+    <bool name="support_secret_dc_backlight">true</bool>
     <!-- whether support backlight bit switch -->
     <bool name="support_backlight_bit_switch">true</bool>
     <!-- whether support display expert mode -->
diff --git a/configs/device_features/aliothin.xml b/configs/device_features/aliothin.xml
index 009c8f6..c4e1a72 100644
--- a/configs/device_features/aliothin.xml
+++ b/configs/device_features/aliothin.xml
@@ -478,6 +478,8 @@
     <bool name="support_hangup_while_screen_off">true</bool>
     <!-- whether support dc backlight -->
     <bool name="support_dc_backlight">false</bool>
+    <!-- whether support secret dc backlight -->
+    <bool name="support_secret_dc_backlight">true</bool>
     <!-- whether support backlight bit switch -->
     <bool name="support_backlight_bit_switch">true</bool>
     <!-- whether support display expert mode -->