AVFoundation ios7 problems - iphone

Question

I'm having problem with recording video+audio on ios7;
I have created the application on ios6.1.3 and everything worked perfect until I have updated my iphone to ios7.
I use AVCaptureSession and connect input devices(microphone and camera);
Please see my code below, this is how I setup devices:
- (void)setupSessionWithPreset:(NSString *)preset withCaptureDevice:(AVCaptureDevicePosition)cd withTorchMode:(AVCaptureTorchMode)tm withError:(NSError **)error
{
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
[audioSession setActive:YES error:nil];
// NSLog(#"sessionError :%#", sessionError);
self.movieFileOutput = [[AVCaptureMovieFileOutput alloc] init];
[self startNotificationObservers];
if(setupComplete)
{
*error = [NSError errorWithDomain:#"Setup session already complete." code:102 userInfo:nil];
return;
}
setupComplete = YES;
AVCaptureDevice *captureDevice = [self cameraWithPosition:cd];
if ([captureDevice hasTorch])
{
if ([captureDevice lockForConfiguration:nil])
{
if ([captureDevice isTorchModeSupported:tm])
{
[captureDevice setTorchMode:AVCaptureTorchModeOff];
}
[captureDevice unlockForConfiguration];
}
}
self.captureSession = [[AVCaptureSession alloc] init];
self.captureSession.sessionPreset = preset;
NSError *errorVI = nil;
self.videoInput = [[AVCaptureDeviceInput alloc] initWithDevice:captureDevice error:&errorVI];
NSLog(#"Video Input :%#", errorVI);
if([self.captureSession canAddInput:self.videoInput])
{
[self.captureSession addInput:self.videoInput];
}
else
{
*error = [NSError errorWithDomain:#"Error setting video input." code:101 userInfo:nil];
return;
}
NSError *errorAI = nil;
self.audioInput = [[AVCaptureDeviceInput alloc] initWithDevice:[self audioDevice] error:&errorAI];
if([self.captureSession canAddInput:self.audioInput])
{
[self.captureSession addInput:self.audioInput];
}
else
{
*error = [NSError errorWithDomain:#"Settings->Privacy->Microphone->VideoFrames(On)" code:500 userInfo:nil];
return;
}
if([self.captureSession canAddOutput:self.movieFileOutput])
{
[self.captureSession addOutput:self.movieFileOutput];
}
else
{
*error = [NSError errorWithDomain:#"Error setting file output." code:101 userInfo:nil];
return;
}
}
As a result I received only thumbnail and complete audio but no video. Please help me< I would really appreciate that.