diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/ChatApplication.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/ChatApplication.kt
index f9bdaf95..9b35e0d1 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/ChatApplication.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/ChatApplication.kt
@@ -32,7 +32,10 @@ object AppEventHandler : ChatEventCallback {
     val events: SharedFlow<Pair<Int, ByteArray?>> = _events
 
     override fun onEvent(type: Int, data: ByteArray?) {
-        if (type == 12) mainHandler.post { com.utun.chat.data.PhoneStateMonitor.refresh() }
+        if (type == 12) mainHandler.post {
+            com.utun.chat.data.CoreActivity.onCoreStarted()
+            com.utun.chat.data.PhoneStateMonitor.refresh()
+        }
         if (type == 12 || type == 13 || type == 65)
             mainHandler.post { com.utun.chat.data.RadioCallController.onEvent(type, data) }
         if (type == 13 || type in 61..64) mainHandler.post { com.utun.chat.data.LocalDiscovery.onEvent(type, data) }
diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/CoreActivity.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/CoreActivity.kt
index 3569ad48..97bfeb80 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/CoreActivity.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/CoreActivity.kt
@@ -14,6 +14,13 @@ object CoreActivity {
     fun radioCall(value: Boolean) { radioCall = value; sync() }
     fun transfer(value: Boolean) { transfer = value; sync() }
     fun reset() { applied = null }
+    /** Новый экземпляр ядра ещё не получал состояние владельцев активности. */
+    fun onCoreStarted() {
+        check(Looper.myLooper() == Looper.getMainLooper())
+        applied = null
+        LogManager.addLog("INFO", "Activity", "core started; resynchronizing activity")
+        sync()
+    }
     fun sync() {
         check(Looper.myLooper() == Looper.getMainLooper())
         if (!NativeLib.isReady()) { applied = null; return }