diff --git a/app/build.gradle b/app/build.gradle
index d4301114a..d9fa76296 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -172,8 +172,6 @@ dependencies {
     implementation 'com.google.android.gms:play-services-location:19.0.1'
     // For Google Sign-In (owner name accesss)
     implementation 'com.google.android.gms:play-services-auth:20.2.0'
-    // ML Kit barcode scanning
-    implementation 'com.google.android.gms:play-services-code-scanner:16.0.0-beta2'
 
     // Add the Firebase SDK for Crashlytics.
     implementation 'com.google.firebase:firebase-crashlytics:18.2.6'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 67799bf9e..535d6953d 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -97,9 +97,6 @@
         <meta-data
             android:name="firebase_analytics_collection_enabled"
             android:value="false" />
-        <meta-data
-            android:name="com.google.mlkit.vision.DEPENDENCIES"
-            android:value="barcode_ui"/>
 
         <!-- we need bind job service for oreo -->
         <service
diff --git a/app/src/main/java/com/geeksville/mesh/android/ContextServices.kt b/app/src/main/java/com/geeksville/mesh/android/ContextServices.kt
index 6915ef4a5..e430b5d6e 100644
--- a/app/src/main/java/com/geeksville/mesh/android/ContextServices.kt
+++ b/app/src/main/java/com/geeksville/mesh/android/ContextServices.kt
@@ -44,16 +44,6 @@ fun Context.hasCompanionDeviceApi(): Boolean =
 fun Context.hasGps(): Boolean =
     packageManager.hasSystemFeature(PackageManager.FEATURE_LOCATION_GPS)
 
-/**
- * return app install source (play store = com.android.vending)
- */
-fun Context.installSource(): String? {
-    return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
-        packageManager.getInstallSourceInfo(packageName).installingPackageName
-    else
-        packageManager.getInstallerPackageName(packageName)
-}
-
 /**
  * return a list of the permissions we don't have
  */
diff --git a/app/src/main/java/com/geeksville/mesh/model/UIState.kt b/app/src/main/java/com/geeksville/mesh/model/UIState.kt
index 00664b17b..d2711e238 100644
--- a/app/src/main/java/com/geeksville/mesh/model/UIState.kt
+++ b/app/src/main/java/com/geeksville/mesh/model/UIState.kt
@@ -346,6 +346,17 @@ class UIViewModel @Inject constructor(
         meshService?.requestReboot(DataPacket.ID_LOCAL)
     }
 
+    fun requestFactoryReset() {
+        val config = _localConfig.value
+        if (config != null) {
+            val builder = config.device.toBuilder()
+            builder.factoryReset = true
+            val newConfig = ConfigProtos.Config.newBuilder()
+            newConfig.device = builder.build()
+            setDeviceConfig(newConfig.build())
+        }
+    }
+
     /**
      * Write the persisted packet data out to a CSV file in the specified location.
      */
diff --git a/app/src/main/java/com/geeksville/mesh/ui/AdvancedSettingsFragment.kt b/app/src/main/java/com/geeksville/mesh/ui/AdvancedSettingsFragment.kt
index 53faed41b..501bed195 100644
--- a/app/src/main/java/com/geeksville/mesh/ui/AdvancedSettingsFragment.kt
+++ b/app/src/main/java/com/geeksville/mesh/ui/AdvancedSettingsFragment.kt
@@ -55,6 +55,7 @@ class AdvancedSettingsFragment : ScreenFragment("Advanced Settings"), Logging {
             binding.lsSleepSwitch.isEnabled = connected && model.isESP32()
             binding.shutdownButton.isEnabled = connected && model.hasAXP()
             binding.rebootButton.isEnabled = connected
+            binding.factoryResetButton.isEnabled = connected
         }
 
         binding.positionBroadcastPeriodEditText.on(EditorInfo.IME_ACTION_DONE) {
@@ -132,5 +133,17 @@ class AdvancedSettingsFragment : ScreenFragment("Advanced Settings"), Logging {
                 }
                 .show()
         }
+
+        binding.factoryResetButton.setOnClickListener {
+            MaterialAlertDialogBuilder(requireContext())
+                .setTitle(R.string.are_you_sure_factory_reset)
+                .setMessage(R.string.factory_reset_description)
+                .setNeutralButton(R.string.cancel) { _, _ ->
+                }
+                .setPositiveButton(R.string.okay) { _, _ ->
+                    model.requestFactoryReset()
+                }
+                .show()
+        }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/geeksville/mesh/ui/ChannelFragment.kt b/app/src/main/java/com/geeksville/mesh/ui/ChannelFragment.kt
index bd4fe6a35..8a16011ff 100644
--- a/app/src/main/java/com/geeksville/mesh/ui/ChannelFragment.kt
+++ b/app/src/main/java/com/geeksville/mesh/ui/ChannelFragment.kt
@@ -25,7 +25,6 @@ import com.geeksville.mesh.ConfigProtos
 import com.geeksville.mesh.R
 import com.geeksville.mesh.android.getCameraPermissions
 import com.geeksville.mesh.android.hasCameraPermission
-import com.geeksville.mesh.android.installSource
 import com.geeksville.mesh.databinding.ChannelFragmentBinding
 import com.geeksville.mesh.model.Channel
 import com.geeksville.mesh.model.ChannelOption
@@ -33,9 +32,6 @@ import com.geeksville.mesh.model.ChannelSet
 import com.geeksville.mesh.model.UIViewModel
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.snackbar.Snackbar
-import com.google.mlkit.vision.barcode.common.Barcode
-import com.google.mlkit.vision.codescanner.GmsBarcodeScannerOptions
-import com.google.mlkit.vision.codescanner.GmsBarcodeScanning
 import com.google.protobuf.ByteString
 import com.journeyapps.barcodescanner.ScanContract
 import com.journeyapps.barcodescanner.ScanOptions
@@ -238,24 +234,6 @@ class ChannelFragment : ScreenFragment("Channel"), Logging {
                 .show()
         }
 
-        fun mlkitScan() {
-            debug("Starting ML Kit code scanner")
-            val options = GmsBarcodeScannerOptions.Builder()
-                .setBarcodeFormats(Barcode.FORMAT_QR_CODE)
-                .build()
-            val scanner = GmsBarcodeScanning.getClient(requireContext(), options)
-            scanner.startScan()
-                .addOnSuccessListener { barcode ->
-                    if (barcode.rawValue != null)
-                        model.setRequestChannelUrl(Uri.parse(barcode.rawValue))
-                }
-                .addOnFailureListener { ex ->
-                    errormsg("code scanner failed: ${ex.message}")
-                    if (requireContext().hasCameraPermission()) zxingScan()
-                    else requestPermissionAndScan()
-                }
-        }
-
         binding.channelNameEdit.on(EditorInfo.IME_ACTION_DONE) {
             requireActivity().hideKeyboard()
         }
@@ -279,13 +257,8 @@ class ChannelFragment : ScreenFragment("Channel"), Logging {
         }
 
         binding.scanButton.setOnClickListener {
-            // only use ML Kit for play store installs
-            if (requireContext().installSource() == "com.android.vending") {
-                mlkitScan()
-            } else {
-                if (requireContext().hasCameraPermission()) zxingScan()
-                else requestPermissionAndScan()
-            }
+            if (requireContext().hasCameraPermission()) zxingScan()
+            else requestPermissionAndScan()
         }
 
         // Note: Do not use setOnCheckedChanged here because we don't want to be called when we programmatically disable editing
diff --git a/app/src/main/res/layout/advanced_settings.xml b/app/src/main/res/layout/advanced_settings.xml
index e19cedb84..4d2ce438b 100644
--- a/app/src/main/res/layout/advanced_settings.xml
+++ b/app/src/main/res/layout/advanced_settings.xml
@@ -88,4 +88,16 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@id/shutdownButton"
         app:layout_constraintTop_toTopOf="@id/shutdownButton" />
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/factoryResetButton"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:layout_marginEnd="16dp"
+        android:text="@string/factory_reset"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/shutdownButton" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index c2caba121..7ca872e21 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -153,4 +153,7 @@
     <string name="mode_append">Append to message</string>
     <string name="mode_instant">Instantly send</string>
     <string name="warning_default_psk">Empty channel names use the default encryption key (any device on %s can read your messages).</string>
+    <string name="factory_reset">Factory reset</string>
+    <string name="are_you_sure_factory_reset">Are you sure you want to factory reset?</string>
+    <string name="factory_reset_description">This will clear all device configuration you have done.</string>
 </resources>