diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 44ecc73..e5f562d 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -55,8 +55,9 @@ dependencies {
     implementation("androidx.camera:camera-lifecycle:1.3.0")
     implementation("androidx.camera:camera-view:1.3.0")
 
-    // WebSocket
-    implementation("com.squareup.okhttp3:okhttp:4.11.0")
+    // WebSocket - OkHttp with all required dependencies
+    implementation("com.squareup.okhttp3:okhttp:4.10.0")
+    implementation("com.squareup.okio:okio:3.5.0")
 
     // JSON
     implementation("com.google.code.gson:gson:2.10.1")
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 3babd0d..1974fe9 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -5,6 +5,10 @@
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.SEND_SMS" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
 
     <!-- Hardware features -->
     <uses-feature
diff --git a/app/src/main/java/com/example/camcontrol/CameraManager.kt b/app/src/main/java/com/example/camcontrol/CameraManager.kt
index 7316160..3968645 100644
--- a/app/src/main/java/com/example/camcontrol/CameraManager.kt
+++ b/app/src/main/java/com/example/camcontrol/CameraManager.kt
@@ -20,7 +20,7 @@ class CameraManager(private val context: Context) {
 
     fun startCamera(
         lifecycleOwner: LifecycleOwner,
-        previewSurfaceProvider: (Preview.SurfaceProvider) -> Unit,
+        previewSurfaceProvider: Preview.SurfaceProvider,
         onError: (String) -> Unit
     ) {
         val cameraProviderFuture = ProcessCameraProvider.getInstance(context)
@@ -34,9 +34,7 @@ class CameraManager(private val context: Context) {
                     val preview = Preview.Builder()
                         .build()
                         .apply {
-                            setSurfaceProvider { surfaceProvider ->
-                                previewSurfaceProvider(surfaceProvider)
-                            }
+                            setSurfaceProvider(previewSurfaceProvider)
                         }
 
                     // Create image capture
diff --git a/app/src/main/java/com/example/camcontrol/MainActivity.kt b/app/src/main/java/com/example/camcontrol/MainActivity.kt
index 2cee810..0eeba51 100644
--- a/app/src/main/java/com/example/camcontrol/MainActivity.kt
+++ b/app/src/main/java/com/example/camcontrol/MainActivity.kt
@@ -85,6 +85,21 @@ class MainActivity : ComponentActivity() {
 
 @Composable
 fun StreamingApp(modifier: Modifier = Modifier) {
+    val context = LocalContext.current
+
+    PermissionChecker(
+        onPermissionsGranted = {
+            // Разрешения выданы, показываем основное приложение
+            StreamingAppContent(modifier)
+        }
+    ) {
+        // Если разрешения не выданы, PermissionChecker сам покажет запрос
+        StreamingAppContent(modifier)
+    }
+}
+
+@Composable
+fun StreamingAppContent(modifier: Modifier = Modifier) {
     val viewModel: StreamViewModel = viewModel()
     val connectionState by viewModel.connectionState.collectAsState()
     val statusMessage by viewModel.statusMessage.collectAsState()
@@ -263,12 +278,12 @@ fun StreamingScreen(
     val context = LocalContext.current
     val cameraManager = remember { CameraManager(context) }
 
+    // Проверяем разрешения на камеру
+    val hasCameraPermission = PermissionManager.hasCameraPermission(context)
+    val hasInternetPermission = PermissionManager.hasInternetPermission(context)
+
     LaunchedEffect(isCameraRunning) {
-        if (isCameraRunning && ContextCompat.checkSelfPermission(
-                context,
-                Manifest.permission.CAMERA
-            ) == PackageManager.PERMISSION_GRANTED
-        ) {
+        if (isCameraRunning && hasCameraPermission) {
             // Start camera preview when connected
             // In a real app, would bind to lifecycle and PreviewView
         }
@@ -286,7 +301,45 @@ fun StreamingScreen(
                 .background(Color.Black),
             contentAlignment = Alignment.Center
         ) {
-            if (isCameraRunning) {
+            if (!hasCameraPermission) {
+                Column(
+                    modifier = Modifier.padding(16.dp),
+                    horizontalAlignment = Alignment.CenterHorizontally,
+                    verticalArrangement = Arrangement.Center
+                ) {
+                    Text(
+                        text = "❌ Нет доступа к камере",
+                        color = Color(0xFFEF4444),
+                        style = MaterialTheme.typography.headlineSmall
+                    )
+                    Spacer(modifier = Modifier.height(8.dp))
+                    Text(
+                        text = "Пожалуйста, выдайте разрешение на доступ к камере в настройках приложения",
+                        color = Color.Gray,
+                        style = MaterialTheme.typography.bodyMedium,
+                        modifier = Modifier.padding(horizontal = 16.dp)
+                    )
+                }
+            } else if (!hasInternetPermission) {
+                Column(
+                    modifier = Modifier.padding(16.dp),
+                    horizontalAlignment = Alignment.CenterHorizontally,
+                    verticalArrangement = Arrangement.Center
+                ) {
+                    Text(
+                        text = "❌ Нет доступа в интернет",
+                        color = Color(0xFFEF4444),
+                        style = MaterialTheme.typography.headlineSmall
+                    )
+                    Spacer(modifier = Modifier.height(8.dp))
+                    Text(
+                        text = "Пожалуйста, выдайте разрешение на доступ в интернет",
+                        color = Color.Gray,
+                        style = MaterialTheme.typography.bodyMedium,
+                        modifier = Modifier.padding(horizontal = 16.dp)
+                    )
+                }
+            } else if (isCameraRunning) {
                 // Camera preview would be rendered here
                 // Using AndroidView with PreviewView in a real implementation
                 Text(
@@ -396,10 +449,11 @@ fun StreamingScreen(
                     containerColor = MaterialTheme.colorScheme.error
                 )
             ) {
-                androidx.compose.material.icons.Icon(
+                androidx.compose.material3.Icon(
                     imageVector = Icons.Filled.CallEnd,
                     contentDescription = "Disconnect",
-                    modifier = Modifier.padding(end = 8.dp)
+                    modifier = Modifier.padding(end = 8.dp),
+                    tint = Color.White
                 )
                 Text("Отключиться")
             }
diff --git a/app/src/main/java/com/example/camcontrol/PermissionManager.kt b/app/src/main/java/com/example/camcontrol/PermissionManager.kt
new file mode 100644
index 0000000..e34c919
--- /dev/null
+++ b/app/src/main/java/com/example/camcontrol/PermissionManager.kt
@@ -0,0 +1,94 @@
+package com.example.camcontrol
+
+import android.Manifest
+import android.content.Context
+import android.content.pm.PackageManager
+import androidx.core.content.ContextCompat
+
+object PermissionManager {
+
+    /**
+     * Список всех необходимых разрешений для приложения
+     */
+    val REQUIRED_PERMISSIONS = arrayOf(
+        Manifest.permission.CAMERA,
+        Manifest.permission.INTERNET,
+        Manifest.permission.ACCESS_NETWORK_STATE,
+        Manifest.permission.RECORD_AUDIO
+    )
+
+    /**
+     * Список опциональных разрешений
+     */
+    val OPTIONAL_PERMISSIONS = arrayOf(
+        Manifest.permission.SEND_SMS,
+        Manifest.permission.ACCESS_FINE_LOCATION,
+        Manifest.permission.ACCESS_COARSE_LOCATION
+    )
+
+    /**
+     * Проверяет, выданы ли определенные разрешения
+     */
+    fun hasPermission(context: Context, permission: String): Boolean {
+        return ContextCompat.checkSelfPermission(context, permission) == PackageManager.PERMISSION_GRANTED
+    }
+
+    /**
+     * Проверяет, выданы ли все обязательные разрешения
+     */
+    fun hasAllRequiredPermissions(context: Context): Boolean {
+        return REQUIRED_PERMISSIONS.all { hasPermission(context, it) }
+    }
+
+    /**
+     * Проверяет, выданы ли разрешения на камеру
+     */
+    fun hasCameraPermission(context: Context): Boolean {
+        return hasPermission(context, Manifest.permission.CAMERA)
+    }
+
+    /**
+     * Проверяет, выданы ли разрешения на интернет
+     */
+    fun hasInternetPermission(context: Context): Boolean {
+        return hasPermission(context, Manifest.permission.INTERNET)
+    }
+
+    /**
+     * Проверяет, выданы ли разрешения на запись аудио
+     */
+    fun hasAudioPermission(context: Context): Boolean {
+        return hasPermission(context, Manifest.permission.RECORD_AUDIO)
+    }
+
+    /**
+     * Проверяет, выданы ли разрешения на отправку SMS
+     */
+    fun hasSMSPermission(context: Context): Boolean {
+        return hasPermission(context, Manifest.permission.SEND_SMS)
+    }
+
+    /**
+     * Проверяет, выданы ли разрешения на доступ в сеть
+     */
+    fun hasNetworkAccessPermission(context: Context): Boolean {
+        return hasPermission(context, Manifest.permission.ACCESS_NETWORK_STATE)
+    }
+
+    /**
+     * Возвращает список неполученных обязательных разрешений
+     */
+    fun getMissingRequiredPermissions(context: Context): List<String> {
+        return REQUIRED_PERMISSIONS.filter { !hasPermission(context, it) }
+    }
+
+    /**
+     * Возвращает статус каждого разрешения
+     */
+    fun getPermissionsStatus(context: Context): Map<String, Boolean> {
+        return (REQUIRED_PERMISSIONS + OPTIONAL_PERMISSIONS).associateWith { permission ->
+            hasPermission(context, permission)
+        }
+    }
+}
+
diff --git a/app/src/main/java/com/example/camcontrol/PermissionUI.kt b/app/src/main/java/com/example/camcontrol/PermissionUI.kt
new file mode 100644
index 0000000..d56e1d4
--- /dev/null
+++ b/app/src/main/java/com/example/camcontrol/PermissionUI.kt
@@ -0,0 +1,242 @@
+package com.example.camcontrol
+
+import android.Manifest
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Check
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material3.Button
+import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun PermissionChecker(
+    onPermissionsGranted: () -> Unit,
+    content: @Composable () -> Unit
+) {
+    val context = LocalContext.current
+    var permissionsGranted by remember { mutableStateOf(PermissionManager.hasAllRequiredPermissions(context)) }
+    var permissionsStatus by remember { mutableStateOf(PermissionManager.getPermissionsStatus(context)) }
+
+    val permissionLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.RequestMultiplePermissions()
+    ) { result ->
+        permissionsStatus = result
+        permissionsGranted = result.values.all { it }
+        if (permissionsGranted) {
+            onPermissionsGranted()
+        }
+    }
+
+    if (!permissionsGranted) {
+        PermissionsRequestScreen(
+            permissionsStatus = permissionsStatus,
+            onRequestPermissions = {
+                val missingPermissions = PermissionManager.getMissingRequiredPermissions(context)
+                if (missingPermissions.isNotEmpty()) {
+                    permissionLauncher.launch(missingPermissions.toTypedArray())
+                }
+            }
+        )
+    } else {
+        content()
+    }
+}
+
+@Composable
+fun PermissionsRequestScreen(
+    permissionsStatus: Map<String, Boolean>,
+    onRequestPermissions: () -> Unit
+) {
+    Column(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(16.dp)
+            .verticalScroll(rememberScrollState()),
+        verticalArrangement = Arrangement.spacedBy(16.dp)
+    ) {
+        Text(
+            text = "🔐 Требуемые разрешения",
+            style = MaterialTheme.typography.headlineSmall,
+            fontWeight = FontWeight.Bold,
+            modifier = Modifier.padding(bottom = 8.dp)
+        )
+
+        Text(
+            text = "Приложению необходимы следующие разрешения для работы",
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant
+        )
+
+        Spacer(modifier = Modifier.height(16.dp))
+
+        // Требуемые разрешения
+        Text(
+            text = "Обязательные разрешения:",
+            style = MaterialTheme.typography.titleMedium,
+            fontWeight = FontWeight.SemiBold
+        )
+
+        val requiredPermissions = mapOf(
+            Manifest.permission.CAMERA to "📷 Доступ к камере",
+            Manifest.permission.INTERNET to "🌐 Доступ в интернет",
+            Manifest.permission.ACCESS_NETWORK_STATE to "📡 Проверка состояния сети",
+            Manifest.permission.RECORD_AUDIO to "🎤 Запись аудио"
+        )
+
+        requiredPermissions.forEach { (permission, label) ->
+            PermissionStatusItem(
+                label = label,
+                isGranted = permissionsStatus[permission] ?: false,
+                isRequired = true
+            )
+        }
+
+        Spacer(modifier = Modifier.height(16.dp))
+
+        // Опциональные разрешения
+        Text(
+            text = "Опциональные разрешения:",
+            style = MaterialTheme.typography.titleMedium,
+            fontWeight = FontWeight.SemiBold
+        )
+
+        val optionalPermissions = mapOf(
+            Manifest.permission.SEND_SMS to "💬 Отправка SMS",
+            Manifest.permission.ACCESS_FINE_LOCATION to "📍 Точное определение местоположения",
+            Manifest.permission.ACCESS_COARSE_LOCATION to "📍 Примерное определение местоположения"
+        )
+
+        optionalPermissions.forEach { (permission, label) ->
+            PermissionStatusItem(
+                label = label,
+                isGranted = permissionsStatus[permission] ?: false,
+                isRequired = false
+            )
+        }
+
+        Spacer(modifier = Modifier.height(24.dp))
+
+        // Кнопка для запроса разрешений
+        Button(
+            onClick = onRequestPermissions,
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(48.dp),
+            colors = ButtonDefaults.buttonColors(
+                containerColor = MaterialTheme.colorScheme.primary
+            )
+        ) {
+            Text("Выдать разрешения")
+        }
+
+        Spacer(modifier = Modifier.height(16.dp))
+
+        // Информационное сообщение
+        Box(
+            modifier = Modifier
+                .fillMaxWidth()
+                .background(
+                    color = Color(0xFFFEF3C7),
+                    shape = MaterialTheme.shapes.small
+                )
+                .padding(12.dp)
+        ) {
+            Text(
+                text = "⚠️ Приложение не может функционировать без обязательных разрешений. Пожалуйста, выдайте все необходимые разрешения.",
+                style = MaterialTheme.typography.bodySmall,
+                color = Color(0xFF92400E)
+            )
+        }
+    }
+}
+
+@Composable
+fun PermissionStatusItem(
+    label: String,
+    isGranted: Boolean,
+    isRequired: Boolean
+) {
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .background(
+                color = if (isGranted) Color(0xFFDCFCE7) else Color(0xFFFEE2E2),
+                shape = MaterialTheme.shapes.small
+            )
+            .padding(12.dp),
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.SpaceBetween
+    ) {
+        Row(
+            modifier = Modifier.weight(1f),
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(8.dp)
+        ) {
+            Icon(
+                imageVector = if (isGranted) Icons.Filled.Check else Icons.Filled.Close,
+                contentDescription = null,
+                tint = if (isGranted) Color(0xFF059669) else Color(0xFFDC2626),
+                modifier = Modifier.width(24.dp)
+            )
+            Column {
+                Text(
+                    text = label,
+                    style = MaterialTheme.typography.bodyMedium,
+                    fontWeight = FontWeight.SemiBold,
+                    color = if (isGranted) Color(0xFF059669) else Color(0xFFDC2626)
+                )
+                if (!isRequired) {
+                    Text(
+                        text = "опционально",
+                        style = MaterialTheme.typography.bodySmall,
+                        color = if (isGranted) Color(0xFF047857) else Color(0xFFB91C1C)
+                    )
+                }
+            }
+        }
+
+        Box(
+            modifier = Modifier
+                .background(
+                    color = if (isGranted) Color(0xFF10B981) else Color(0xFFEF4444),
+                    shape = MaterialTheme.shapes.small
+                )
+                .padding(6.dp, 4.dp)
+        ) {
+            Text(
+                text = if (isGranted) "✓" else "✗",
+                color = Color.White,
+                style = MaterialTheme.typography.bodySmall,
+                fontWeight = FontWeight.Bold
+            )
+        }
+    }
+}
+
diff --git a/app/src/main/java/com/example/camcontrol/VideoStreamingManager.kt b/app/src/main/java/com/example/camcontrol/VideoStreamingManager.kt
index 4cc918a..3417ed1 100644
--- a/app/src/main/java/com/example/camcontrol/VideoStreamingManager.kt
+++ b/app/src/main/java/com/example/camcontrol/VideoStreamingManager.kt
@@ -24,7 +24,7 @@ class VideoStreamingManager(
 
     fun startStreaming(
         lifecycleOwner: LifecycleOwner,
-        previewSurfaceProvider: (Preview.SurfaceProvider) -> Unit
+        previewSurfaceProvider: Preview.SurfaceProvider
     ) {
         val cameraProviderFuture = ProcessCameraProvider.getInstance(context)
 
@@ -37,9 +37,7 @@ class VideoStreamingManager(
                     val preview = Preview.Builder()
                         .build()
                         .apply {
-                            setSurfaceProvider { surfaceProvider ->
-                                previewSurfaceProvider(surfaceProvider)
-                            }
+                            setSurfaceProvider(previewSurfaceProvider)
                         }
 
                     // Create image analysis for frame processing
diff --git a/app/src/main/java/com/example/camcontrol/WebSocketManager.kt b/app/src/main/java/com/example/camcontrol/WebSocketManager.kt
index bfb6ca3..b86c114 100644
--- a/app/src/main/java/com/example/camcontrol/WebSocketManager.kt
+++ b/app/src/main/java/com/example/camcontrol/WebSocketManager.kt
@@ -12,7 +12,8 @@ class WebSocketManager(
     private val onConnected: () -> Unit = {},
     private val onDisconnected: () -> Unit = {},
     private val onError: (String) -> Unit = {},
-    private val onMessage: (String) -> Unit = {}
+    private val onMessage: (String) -> Unit = {},
+    private val onBinaryMessage: (ByteArray) -> Unit = {}
 ) : WebSocketListener() {
 
     private var webSocket: WebSocket? = null
@@ -20,6 +21,7 @@ class WebSocketManager(
         .connectTimeout(30, TimeUnit.SECONDS)
         .readTimeout(30, TimeUnit.SECONDS)
         .writeTimeout(30, TimeUnit.SECONDS)
+        .retryOnConnectionFailure(true)
         .build()
 
     fun connect(url: String) {
@@ -29,6 +31,7 @@ class WebSocketManager(
                 .build()
 
             webSocket = client.newWebSocket(request, this)
+            client.dispatcher.executorService // Ensure executor is running
             Log.d("WebSocket", "Connecting to: $url")
         } catch (e: Exception) {
             Log.e("WebSocket", "Connection error: ${e.message}")
@@ -48,11 +51,18 @@ class WebSocketManager(
 
     fun sendBinary(data: ByteArray) {
         try {
-            val byteString = okhttp3.ByteString.of(*data)
-            webSocket?.send(byteString)
+            // Create ByteString from ByteArray using reflection to avoid import issues
+            val byteStringClass = Class.forName("okhttp3.ByteString")
+            val ofMethod = byteStringClass.getMethod("of", ByteArray::class.java)
+            val byteString = ofMethod.invoke(null, data)
+
+            val sendMethod = WebSocket::class.java.getMethod("send", byteStringClass)
+            sendMethod.invoke(webSocket, byteString)
+
             Log.d("WebSocket", "Binary data sent: ${data.size} bytes")
         } catch (e: Exception) {
             Log.e("WebSocket", "Binary send error: ${e.message}")
+            onError(e.message ?: "Failed to send binary data")
         }
     }
 
@@ -66,6 +76,8 @@ class WebSocketManager(
         }
     }
 
+    fun isConnected(): Boolean = webSocket != null
+
     override fun onOpen(webSocket: WebSocket, response: Response) {
         Log.d("WebSocket", "Connected!")
         onConnected()
@@ -76,6 +88,7 @@ class WebSocketManager(
         onMessage(text)
     }
 
+
     override fun onClosing(webSocket: WebSocket, code: Int, reason: String) {
         webSocket.close(1000, null)
         Log.d("WebSocket", "Closing: $code $reason")