diff --git a/client/3rd-prebuilt b/client/3rd-prebuilt
index fbb5f586..c3ca525f 160000
--- a/client/3rd-prebuilt
+++ b/client/3rd-prebuilt
@@ -1 +1 @@
-Subproject commit fbb5f586b94efc3f65edeaf9559c8a5c4e752d66
+Subproject commit c3ca525f92e57fecdd6047e35b4ccded8b173407
diff --git a/client/android/src/com/wireguard/config/Interface.java b/client/android/src/com/wireguard/config/Interface.java
index df6b7fb1..4b561680 100644
--- a/client/android/src/com/wireguard/config/Interface.java
+++ b/client/android/src/com/wireguard/config/Interface.java
@@ -595,7 +595,7 @@ public final class Interface {
       if (jc < 0)
         throw new BadConfigException(
             Section.INTERFACE, Location.JC, Reason.INVALID_VALUE, String.valueOf(jc));
-      this.jc = jc == 0 ? Optional.empty() : Optional.of(jc);
+      this.jc = Optional.of(jc);
       return this;
     }      
     
@@ -603,7 +603,7 @@ public final class Interface {
       if (jmin < 0)
         throw new BadConfigException(
             Section.INTERFACE, Location.JMIN, Reason.INVALID_VALUE, String.valueOf(jmin));
-      this.jmin = jmin == 0 ? Optional.empty() : Optional.of(jmin);
+      this.jmin = Optional.of(jmin);
       return this;
     }
 
@@ -611,7 +611,7 @@ public final class Interface {
       if (jmax < 0)
         throw new BadConfigException(
             Section.INTERFACE, Location.JMAX, Reason.INVALID_VALUE, String.valueOf(jmax));
-      this.jmax = jmax == 0 ? Optional.empty() : Optional.of(jmax);
+      this.jmax = Optional.of(jmax);
       return this;
     }
 
@@ -619,7 +619,7 @@ public final class Interface {
       if (s1 < 0)
         throw new BadConfigException(
             Section.INTERFACE, Location.S1, Reason.INVALID_VALUE, String.valueOf(s1));
-      this.s1 = s1 == 0 ? Optional.empty() : Optional.of(s1);
+      this.s1 = Optional.of(s1);
       return this;
     }
 
@@ -627,7 +627,7 @@ public final class Interface {
       if (s2 < 0)
         throw new BadConfigException(
             Section.INTERFACE, Location.S2, Reason.INVALID_VALUE, String.valueOf(s2));
-      this.s2 = s2 == 0 ? Optional.empty() : Optional.of(s2);
+      this.s2 = Optional.of(s2);
       return this;
     }
 
@@ -635,7 +635,7 @@ public final class Interface {
       if (h1 < 0)
         throw new BadConfigException(
             Section.INTERFACE, Location.H1, Reason.INVALID_VALUE, String.valueOf(h1));
-      this.h1 = h1 == 0 ? Optional.empty() : Optional.of(h1);
+      this.h1 = Optional.of(h1);
       return this;
     }
 
@@ -643,7 +643,7 @@ public final class Interface {
       if (h2 < 0)
         throw new BadConfigException(
             Section.INTERFACE, Location.H2, Reason.INVALID_VALUE, String.valueOf(h2));
-      this.h2 = h2 == 0 ? Optional.empty() : Optional.of(h2);
+      this.h2 = Optional.of(h2);
       return this;
     }
 
@@ -651,7 +651,7 @@ public final class Interface {
       if (h3 < 0)
         throw new BadConfigException(
             Section.INTERFACE, Location.H3, Reason.INVALID_VALUE, String.valueOf(h3));
-      this.h3 = h3 == 0 ? Optional.empty() : Optional.of(h3);
+      this.h3 = Optional.of(h3);
       return this;
     }
 
@@ -659,7 +659,7 @@ public final class Interface {
       if (h4 < 0)
         throw new BadConfigException(
             Section.INTERFACE, Location.H4, Reason.INVALID_VALUE, String.valueOf(h4));
-      this.h4 = h4 == 0 ? Optional.empty() : Optional.of(h4);
+      this.h4 = Optional.of(h4);
       return this;
     }
   }
diff --git a/client/android/src/org/amnezia/vpn/VPNService.kt b/client/android/src/org/amnezia/vpn/VPNService.kt
index fe08a3cf..06f58980 100644
--- a/client/android/src/org/amnezia/vpn/VPNService.kt
+++ b/client/android/src/org/amnezia/vpn/VPNService.kt
@@ -615,6 +615,17 @@ class VPNService : BaseVpnService(), LocalDnsService.Interface {
             ifaceBuilder.parseH2(ifaceConfig["H2"])
             ifaceBuilder.parseH3(ifaceConfig["H3"])
             ifaceBuilder.parseH4(ifaceConfig["H4"])
+        } else {
+            ifaceBuilder.parseJc("0")
+            ifaceBuilder.parseJmin("0")
+            ifaceBuilder.parseJmax("0")
+            ifaceBuilder.parseS1("0")
+            ifaceBuilder.parseS2("0")
+            ifaceBuilder.parseH1("0")
+            ifaceBuilder.parseH2("0")
+            ifaceBuilder.parseH3("0")
+            ifaceBuilder.parseH4("0")           
+        
         }
         /*val jExcludedApplication = obj.getJSONArray("excludedApps")
     (0 until jExcludedApplication.length()).toList().forEach {
@@ -745,9 +756,15 @@ class VPNService : BaseVpnService(), LocalDnsService.Interface {
         val builder = Builder()
         setupBuilder(wireguard_conf, builder)
         builder.setSession("Amnezia")
+        
+        
         builder.establish().use { tun ->
-            if (tun == null) return
-            currentTunnelHandle = GoBackend.wgTurnOn("Amnezia", tun.detachFd(), wgConfig)
+        if (tun == null) return
+            if (type == "awg"){
+      	        currentTunnelHandle = GoBackend.wgTurnOn("awg0", tun.detachFd(), wgConfig)
+            } else {
+                currentTunnelHandle = GoBackend.wgTurnOn("amn0", tun.detachFd(), wgConfig)
+            }
         }
         if (currentTunnelHandle < 0) {
             Log.e(tag, "Activation Error Code -> $currentTunnelHandle")