diff --git a/lib/helpers.js b/lib/helpers.js
index 4641f44f..2159c80b 100644
--- a/lib/helpers.js
+++ b/lib/helpers.js
@@ -271,6 +271,17 @@ export async function getApkanalyzerForOs (sysHelpers) {
   return await sysHelpers.getBinaryFromSdkRoot('apkanalyzer');
 }
 
+/**
+ * Checks screenState has SCREEN_STATE_OFF in dumpsys output to determine
+ * possible lock screen.
+ *
+ * @param {string} dumpsys - The output of dumpsys window command.
+ * @return {boolean} True if lock screen is showing.
+ */
+export function isScreenStateOff(dumpsys) {
+  return /\s+screenState=SCREEN_STATE_OFF/i.test(dumpsys);
+}
+
 /**
  * Checks mShowingLockscreen or mDreamingLockscreen in dumpsys output to determine
  * if lock screen is showing
@@ -323,7 +334,8 @@ export function getSurfaceOrientation (dumpsys) {
 
 /*
  * Checks mScreenOnFully in dumpsys output to determine if screen is showing
- * Default is true
+ * Default is true.
+ * Note: this key
  */
 export function isScreenOnFully (dumpsys) {
   let m = /mScreenOnFully=\w+/gi.exec(dumpsys);
diff --git a/lib/tools/lockmgmt.js b/lib/tools/lockmgmt.js
index dcea9a5b..af944227 100644
--- a/lib/tools/lockmgmt.js
+++ b/lib/tools/lockmgmt.js
@@ -2,7 +2,7 @@ import { log } from '../logger.js';
 import _ from 'lodash';
 import {
   isShowingLockscreen, isCurrentFocusOnKeyguard, isScreenOnFully,
-  isInDozingMode,
+  isInDozingMode, isScreenStateOff,
 } from '../helpers.js';
 import B from 'bluebird';
 import { waitForCondition } from 'asyncbox';
@@ -217,7 +217,8 @@ export async function isScreenLocked () {
   return isShowingLockscreen(windowOutput)
     || isCurrentFocusOnKeyguard(windowOutput)
     || !isScreenOnFully(windowOutput)
-    || isInDozingMode(powerOutput);
+    || isInDozingMode(powerOutput)
+    || isScreenStateOff(windowOutput);
 }
 
 /**
diff --git a/test/unit/helper-specs.js b/test/unit/helper-specs.js
index eb300735..b8872fea 100644
--- a/test/unit/helper-specs.js
+++ b/test/unit/helper-specs.js
@@ -3,6 +3,7 @@ import {
   buildStartCmd, isShowingLockscreen, getBuildToolsDirs,
   parseAaptStrings, parseAapt2Strings,
   extractMatchingPermissions, parseLaunchableActivityNames, matchComponentName,
+  isScreenStateOff,
 } from '../../lib/helpers';
 import { withMocks } from '@appium/test-support';
 import { fs } from '@appium/support';
@@ -58,6 +59,64 @@ describe('helpers', withMocks({fs}, function (mocks) {
     });
   });
 
+  describe('isScreenStateOff', function () {
+    it('should return true if isScreenStateOff is off', async function () {
+      let dumpsys = `
+    KeyguardServiceDelegate
+      showing=false
+      showingAndNotOccluded=true
+      inputRestricted=false
+      occluded=false
+      secure=false
+      dreaming=false
+      systemIsReady=true
+      deviceHasKeyguard=true
+      enabled=true
+      offReason=OFF_BECAUSE_OF_USER
+      currentUser=-10000
+      bootCompleted=true
+      screenState=SCREEN_STATE_OFF
+      interactiveState=INTERACTIVE_STATE_SLEEP
+      KeyguardStateMonitor
+        mIsShowing=false
+        mSimSecure=false
+        mInputRestricted=false
+        mTrusted=false
+        mCurrentUserId=0
+        ...
+      `;
+      isScreenStateOff(dumpsys).should.be.true;
+    });
+    it('should return true if isScreenStateOff is on', async function () {
+      let dumpsys = `
+    KeyguardServiceDelegate
+      showing=false
+      showingAndNotOccluded=true
+      inputRestricted=false
+      occluded=false
+      secure=false
+      dreaming=false
+      systemIsReady=true
+      deviceHasKeyguard=true
+      enabled=true
+      offReason=OFF_BECAUSE_OF_USER
+      currentUser=-10000
+      bootCompleted=true
+      screenState=SCREEN_STATE_ON
+      interactiveState=INTERACTIVE_STATE_AWAKE
+      KeyguardStateMonitor
+        mIsShowing=false
+        mSimSecure=false
+        mInputRestricted=false
+        mTrusted=false
+        mCurrentUserId=0
+        ...
+      `;
+      isScreenStateOff(dumpsys).should.be.false;
+    });
+  });
+
+
   describe('isShowingLockscreen', function () {
     it('should return true if mShowingLockscreen is true', async function () {
       let dumpsys = 'mShowingLockscreen=true mShowingDream=false mDreamingLockscreen=false mTopIsFullscreen=false';