diff --git a/build.gradle b/build.gradle
index 36372ffbe..1a7188fd5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,7 +19,7 @@ buildscript {
 	jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.0'
+        classpath 'com.android.tools.build:gradle:3.3.0'
 	if (googleFile.exists()) {
             classpath 'com.google.gms:google-services:3.1.0'
 	}
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 40f16998a..76e29327f 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.7-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
diff --git a/res/raw/linphonerc_factory b/res/raw/linphonerc_factory
index d40426fd1..8c648b39f 100644
--- a/res/raw/linphonerc_factory
+++ b/res/raw/linphonerc_factory
@@ -32,7 +32,8 @@ playback_dev_id=
 ringer_dev_id=
 capture_dev_id=
 dtmf_player_amp=0.1
-ec_filter=MSWebRTCAEC
+#ec_filter=MSWebRTCAEC
+
 
 #remove this property for any application that is not Linphone public version itself
 ec_calibrator_cool_tones=1
diff --git a/submodules/mediastreamer2 b/submodules/mediastreamer2
index c54e7d15d..a64b59653 160000
--- a/submodules/mediastreamer2
+++ b/submodules/mediastreamer2
@@ -1 +1 @@
-Subproject commit c54e7d15df4485f21ce9419fd95bbfc569f4d665
+Subproject commit a64b59653b09852490acb3b642e4435d989097db