diff --git a/app/src/main/java/cash/z/ecc/android/ui/scan/ScanFragment.kt b/app/src/main/java/cash/z/ecc/android/ui/scan/ScanFragment.kt
index 07f152f..d3461ba 100644
--- a/app/src/main/java/cash/z/ecc/android/ui/scan/ScanFragment.kt
+++ b/app/src/main/java/cash/z/ecc/android/ui/scan/ScanFragment.kt
@@ -18,6 +18,7 @@ import cash.z.ecc.android.ext.onClickNavTo
 import cash.z.ecc.android.feedback.Report
 import cash.z.ecc.android.feedback.Report.Tap.SCAN_BACK
 import cash.z.ecc.android.feedback.Report.Tap.SCAN_RECEIVE
+import cash.z.ecc.android.sdk.ext.ZcashSdk
 import cash.z.ecc.android.sdk.ext.twig
 import cash.z.ecc.android.ui.base.BaseFragment
 import cash.z.ecc.android.ui.send.SendViewModel
@@ -125,8 +126,13 @@ class ScanFragment : BaseFragment<FragmentScanBinding>() {
 
     private fun onQrScanned(qrContent: String, image: ImageProxy) {
         resumedScope.launch {
-            if (viewModel.isNotValid(qrContent)) image.close() // continue scanning
-            else {
+            if (viewModel.isNotValid(qrContent)) {
+                //todo: use the "NETWORK" constant that will be available in the next SDK build
+                val network = ZcashSdk.DEFAULT_DB_NAME_PREFIX.split("_")[1]
+                binding.textScanError.text = "Invalid Zcash $network address:\n$qrContent"
+                image.close()
+            } else {  /* continue scanning*/
+                binding.textScanError.text = ""
                 sendViewModel.toAddress = qrContent
                 mainActivity?.safeNavigate(R.id.action_nav_scan_to_nav_send_address)
             }
diff --git a/app/src/main/res/layout/fragment_scan.xml b/app/src/main/res/layout/fragment_scan.xml
index 6ad8ae0..22cac4a 100644
--- a/app/src/main/res/layout/fragment_scan.xml
+++ b/app/src/main/res/layout/fragment_scan.xml
@@ -150,6 +150,23 @@
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintVertical_bias="0.3" />
 
+    <TextView
+        android:id="@+id/text_scan_error"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:fontFamily="@font/inconsolata"
+        android:gravity="center"
+        android:textColor="@color/text_light_dimmed"
+        android:textSize="16dp"
+        android:ellipsize="end"
+        android:paddingBottom="16dp"
+        android:paddingTop="8dp"
+        app:layout_constraintBottom_toTopOf="@id/button_receive"
+        app:layout_constraintEnd_toEndOf="@id/scan_frame"
+        app:layout_constraintStart_toStartOf="@id/scan_frame"
+        app:layout_constraintTop_toBottomOf="@id/scan_frame"
+        tools:text="invalid:\nz98yz9uhz98uyz988yz98hzu8hgziouzgi9uzg9z8uogozuz z98yz9uhz98uyz988yz98hzu8hgziouzgi9uzg9z8uogozuzz98yz9uhz98uyz988yz98hzu8hgziouzgi9uzg9z8uogozuzz98yz9uhz98uyz988yz98hzu8hgziouzgi9uzg9z8uogozuzz98yz9uhz98uyz988yz98hzu8hgziouzgi9uzg9z8uogozuzz98yz9uhz98uyz988yz98hzu8hgziouzgi9uzg9z8uogozuzz98yz9uhz98uyz988yz98hzu8hgziouzgi9uzg9z8uogozuz" />
+
     <com.google.android.material.button.MaterialButton
         android:id="@+id/button_receive"
         android:layout_width="0dp"