diff --git a/app/src/main/java/org/koreader/launcher/device/DeviceInfo.kt b/app/src/main/java/org/koreader/launcher/device/DeviceInfo.kt
index c96f22127..612f87769 100644
--- a/app/src/main/java/org/koreader/launcher/device/DeviceInfo.kt
+++ b/app/src/main/java/org/koreader/launcher/device/DeviceInfo.kt
@@ -78,6 +78,7 @@ object DeviceInfo {
         NABUK,
         NOOK,
         NOOK_GL4,
+        NOOK_GL4PLUS,
         NOOK_GLPLUS,
         OBOOK_P10D,
         OBOOK_P78D,
@@ -358,11 +359,15 @@ object DeviceInfo {
             MANUFACTURER == "onyx" && MODEL == "nabukreg_hd"
             -> Id.NABUK
 
-            // Nook Glowlight 4 (4/4e/4plus)
-            (MANUFACTURER == "barnesandnoble")
-            && (MODEL == "bnrv1000" || MODEL == "bnrv1100" || MODEL == "bnrv1300")
+            // Nook Glowlight 4 / 4e
+            MANUFACTURER == "barnesandnoble"
+            && (MODEL == "bnrv1000" || MODEL == "bnrv1100")
             -> Id.NOOK_GL4
 
+            // Nook Glowlight 4 Plus
+            MANUFACTURER == "barnesandnoble" && MODEL == "bnrv1300"
+            -> Id.NOOK_GL4PLUS
+
             // Nook Glowlight plus 7.8" (2019)
             MANUFACTURER == "barnesandnoble" && MODEL == "bnrv700" && PRODUCT == "ntx_6sl"
             -> Id.NOOK_GLPLUS
diff --git a/app/src/main/java/org/koreader/launcher/device/EPDFactory.kt b/app/src/main/java/org/koreader/launcher/device/EPDFactory.kt
index 165b01ca2..3adbad8b3 100644
--- a/app/src/main/java/org/koreader/launcher/device/EPDFactory.kt
+++ b/app/src/main/java/org/koreader/launcher/device/EPDFactory.kt
@@ -69,6 +69,7 @@ object EPDFactory {
 
                 DeviceInfo.Id.MOOINKPLUS2C,
                 DeviceInfo.Id.NOOK_GL4,
+                DeviceInfo.Id.NOOK_GL4PLUS,
                 DeviceInfo.Id.TOLINO_EPOS3,
                 DeviceInfo.Id.TOLINO_VISION6,
                 DeviceInfo.Id.TOLINO_SHINE4,
diff --git a/app/src/main/java/org/koreader/launcher/device/LightsFactory.kt b/app/src/main/java/org/koreader/launcher/device/LightsFactory.kt
index f5d081438..84489ee4d 100644
--- a/app/src/main/java/org/koreader/launcher/device/LightsFactory.kt
+++ b/app/src/main/java/org/koreader/launcher/device/LightsFactory.kt
@@ -106,6 +106,11 @@ object LightsFactory {
                     logController("TolinoNTXNoWarmth")
                     TolinoNtxNoWarmthController()
                 }
+                DeviceInfo.Id.NOOK_GL4PLUS,
+                -> {
+                    logController("NookGL4plus")
+                    NookGL4plusController()
+                }
                 DeviceInfo.Id.NOOK_GL4,
                 DeviceInfo.Id.TOLINO_EPOS2,
                 -> {
diff --git a/app/src/main/java/org/koreader/launcher/device/lights/NookGL4plusController.kt b/app/src/main/java/org/koreader/launcher/device/lights/NookGL4plusController.kt
new file mode 100644
index 000000000..261d2631c
--- /dev/null
+++ b/app/src/main/java/org/koreader/launcher/device/lights/NookGL4plusController.kt
@@ -0,0 +1,108 @@
+package org.koreader.launcher.device.lights
+
+import android.app.Activity
+import android.content.ComponentName
+import android.content.Intent
+import android.provider.Settings
+import android.util.Log
+import org.koreader.launcher.device.LightsInterface
+
+/* Controller for Nook Glowlight 4 Plus (bnrv1300) on Android 8.1.
+ * Brightness via Settings.System. Requires "Modify system settings" special app permission;
+ *   grant with: adb shell appops set org.koreader.launcher WRITE_SETTINGS allow
+ * Warmth via com.nook.partner GlowLightService (exported, no permission required, no root).
+ *   Sends action_set_color_temperature (0-100 scale); the service rescales to 0-10 for
+ *   the lm3630a_led hardware and calls PowerManager.setFrontlightBrightnessColor() using
+ *   its own DEVICE_POWER privilege.
+ * see https://github.com/koreader/koreader/issues/14574
+ */
+class NookGL4plusController : LightsInterface {
+
+    companion object {
+        private const val TAG = "Lights"
+        private const val BRIGHTNESS_MAX = 100
+        private const val WARMTH_MAX = 10
+        private const val MIN = 0
+        private const val GLOWLIGHT_PACKAGE = "com.nook.partner"
+        private const val GLOWLIGHT_SERVICE = "com.nook.partner.service.GlowLightService"
+        private const val ACTION_SET_COLOR_TEMPERATURE = "action_set_color_temperature"
+        private const val EXTRA_COLOR_TEMPERATURE = "extra_color_temperature"
+    }
+
+    @Volatile private var currentWarmth: Int = MIN
+
+    override fun getPlatform(): String = "nook"
+    override fun hasFallback(): Boolean = false
+    override fun hasWarmth(): Boolean = true
+    override fun needsPermission(): Boolean = false
+    override fun hasStandaloneWarmth(): Boolean = false
+    override fun enableFrontlightSwitch(activity: Activity): Int = 1
+
+    override fun getBrightness(activity: Activity): Int {
+        return try {
+            Settings.System.getInt(activity.applicationContext.contentResolver,
+                Settings.System.SCREEN_BRIGHTNESS)
+        } catch (e: Exception) {
+            Log.w(TAG, e.toString())
+            MIN
+        }
+    }
+
+    override fun getWarmth(activity: Activity): Int {
+        return try {
+            Settings.System.getInt(activity.applicationContext.contentResolver,
+                "screen_brightness_color")
+        } catch (e: Exception) {
+            currentWarmth
+        }
+    }
+
+    override fun setBrightness(activity: Activity, brightness: Int) {
+        if (brightness < MIN || brightness > BRIGHTNESS_MAX) {
+            Log.w(TAG, "brightness value out of range: $brightness")
+            return
+        }
+        Log.v(TAG, "Setting brightness to $brightness")
+        try {
+            Settings.System.putInt(activity.applicationContext.contentResolver,
+                Settings.System.SCREEN_BRIGHTNESS, brightness)
+        } catch (e: Exception) {
+            Log.w(TAG, "$e")
+        }
+    }
+
+    override fun setWarmth(activity: Activity, warmth: Int) {
+        if (warmth < MIN || warmth > WARMTH_MAX) {
+            Log.w(TAG, "warmth value out of range: $warmth")
+            return
+        }
+        if (warmth == getWarmth(activity)) return
+        Log.v(TAG, "Setting warmth to $warmth of $WARMTH_MAX")
+        setWarmthViaService(activity, warmth)
+    }
+
+    private fun setWarmthViaService(activity: Activity, warmth: Int): Boolean {
+        return try {
+            val intent = Intent(ACTION_SET_COLOR_TEMPERATURE).apply {
+                component = ComponentName(GLOWLIGHT_PACKAGE, GLOWLIGHT_SERVICE)
+                putExtra(EXTRA_COLOR_TEMPERATURE, warmth * 10)
+            }
+            val result = activity.startService(intent)
+            if (result != null) {
+                currentWarmth = warmth
+                true
+            } else {
+                Log.w(TAG, "GlowLightService unavailable (com.nook.partner disabled?)")
+                false
+            }
+        } catch (e: Exception) {
+            Log.w(TAG, "setWarmth via service failed: $e")
+            false
+        }
+    }
+
+    override fun getMinBrightness(): Int = MIN
+    override fun getMaxBrightness(): Int = BRIGHTNESS_MAX
+    override fun getMinWarmth(): Int = MIN
+    override fun getMaxWarmth(): Int = WARMTH_MAX
+}