diff --git a/fod/FingerprintInscreen.cpp b/fod/FingerprintInscreen.cpp
index e5be291..cc3e1f2 100644
--- a/fod/FingerprintInscreen.cpp
+++ b/fod/FingerprintInscreen.cpp
@@ -28,10 +28,6 @@
 #define PARAM_NIT_FOD 1
 #define PARAM_NIT_NONE 0
 
-#define FOD_HBM_PATH "/sys/devices/platform/soc/soc:qcom,dsi-display/fod_hbm"
-#define FOD_HBM_ON 1
-#define FOD_HBM_OFF 0
-
 #define FOD_STATUS_PATH "/sys/devices/virtual/touch/tp_dev/fod_status"
 #define FOD_STATUS_ON 1
 #define FOD_STATUS_OFF 0
@@ -40,18 +36,8 @@
 #define FOD_SENSOR_Y 1931
 #define FOD_SENSOR_SIZE 190
 
-#define BRIGHTNESS_PATH "/sys/class/backlight/panel0-backlight/brightness"
-
 namespace {
 
-template <typename T>
-static T get(const std::string& path, const T& def) {
-    std::ifstream file(path);
-    T result;
-    file >> result;
-    return file.fail() ? def : result;
-}
-
 template <typename T>
 static void set(const std::string& path, const T& value) {
     std::ofstream file(path);
@@ -93,13 +79,11 @@ Return<void> FingerprintInscreen::onFinishEnroll() {
 }
 
 Return<void> FingerprintInscreen::onPress() {
-    set(FOD_HBM_PATH, FOD_HBM_ON);
     xiaomiFingerprintService->extCmd(COMMAND_NIT, PARAM_NIT_FOD);
     return Void();
 }
 
 Return<void> FingerprintInscreen::onRelease() {
-    set(FOD_HBM_PATH, FOD_HBM_OFF);
     xiaomiFingerprintService->extCmd(COMMAND_NIT, PARAM_NIT_NONE);
     return Void();
 }
@@ -151,16 +135,7 @@ Return<void> FingerprintInscreen::setLongPressEnabled(bool) {
 }
 
 Return<int32_t> FingerprintInscreen::getDimAmount(int32_t /* brightness */) {
-    int realBrightness = get(BRIGHTNESS_PATH, 0);
-    float alpha;
-
-    if (realBrightness > 500) {
-        alpha = 1.0 - pow(realBrightness / 2047.0 * 430.0 / 600.0, 0.455);
-    } else {
-        alpha = 1.0 - pow(realBrightness / 1680.0, 0.455);
-    }
-
-    return 255 * alpha;
+    return 0;
 }
 
 Return<bool> FingerprintInscreen::shouldBoostBrightness() {
diff --git a/fod/vendor.lineage.biometrics.fingerprint.inscreen@1.0-service.davinci.rc b/fod/vendor.lineage.biometrics.fingerprint.inscreen@1.0-service.davinci.rc
index fd31135..fc9b733 100644
--- a/fod/vendor.lineage.biometrics.fingerprint.inscreen@1.0-service.davinci.rc
+++ b/fod/vendor.lineage.biometrics.fingerprint.inscreen@1.0-service.davinci.rc
@@ -1,8 +1,5 @@
 on boot
-    chown system system /sys/devices/platform/soc/soc:qcom,dsi-display/fod_hbm
     chown system system /sys/devices/virtual/touch/tp_dev/fod_status
-
-    chmod 0644 /sys/devices/platform/soc/soc:qcom,dsi-display/fod_hbm
     chmod 0644 /sys/devices/virtual/touch/tp_dev/fod_status
 
 service vendor.fingerprint-inscreen-1-0 /vendor/bin/hw/vendor.lineage.biometrics.fingerprint.inscreen@1.0-service.davinci
diff --git a/sepolicy/vendor/file_contexts b/sepolicy/vendor/file_contexts
index 00f4db5..9aa9615 100644
--- a/sepolicy/vendor/file_contexts
+++ b/sepolicy/vendor/file_contexts
@@ -9,7 +9,6 @@
 /data/vendor/goodix(/.*)?                                            u:object_r:fingerprint_data_file:s0
 
 # FOD
-/sys/devices/platform/soc/soc:qcom,dsi-display/fod_hbm               u:object_r:sysfs_fod:s0
 /sys/devices/virtual/touch/tp_dev/fod_status                         u:object_r:sysfs_fod:s0
 
 # HALs