diff --git a/xwords4/android/app/build.gradle b/xwords4/android/app/build.gradle
index 5333aa58f..dcb43f94e 100644
--- a/xwords4/android/app/build.gradle
+++ b/xwords4/android/app/build.gradle
@@ -61,7 +61,8 @@ android {
     ndkVersion '21.4.7075529'
     defaultConfig {
         // HostApduService requires 19. But is it a problem?
-        minSdkVersion 14
+        // minSdkVersion 14
+		minSdkVersion 19 // Required for paho client > 3:1.1.+
         targetSdkVersion 30     // must match ../build.gradle
         versionCode VERSION_CODE_BASE
         versionName VERSION_NAME
@@ -362,7 +363,11 @@ dependencies {
 
     implementation 'com.github.eehouse:nbsproxy:v0.2.2'
 
-    implementation "org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.1.+"
+	// 3:1.2.+ crashes on API 18 and below (all Jelly Beans) because
+	// java.nio.charset.StandardCharsets not defined. Does not crash on
+	// 19 (KitKat).
+	implementation "org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.2.+"
+	// implementation "org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.1.+"
 
     implementation 'com.google.zxing:core:3.3.+'
 }
diff --git a/xwords4/android/app/src/main/java/org/eehouse/android/xw4/CommsTransport.java b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/CommsTransport.java
index a9caab875..979d60d93 100644
--- a/xwords4/android/app/src/main/java/org/eehouse/android/xw4/CommsTransport.java
+++ b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/CommsTransport.java
@@ -361,7 +361,7 @@ public class CommsTransport implements TransportProcs,
                conType.toString() );
         int nSent = -1;
         Assert.assertNotNull( addr );
-        Assert.assertTrue( addr.contains( conType ) );
+        Assert.assertTrueNR( addr.contains( conType ) ); // fired per google
 
         if ( !BuildConfig.UDP_ENABLED && conType == CommsConnType.COMMS_CONN_RELAY
              && null == m_relayAddr ) {