diff --git a/TL866_Updater/QT/mainwindow.cpp b/TL866_Updater/QT/mainwindow.cpp
index 273590a..361571e 100644
--- a/TL866_Updater/QT/mainwindow.cpp
+++ b/TL866_Updater/QT/mainwindow.cpp
@@ -318,7 +318,6 @@ void MainWindow::on_btnDump_clicked()
             watcher.setProperty("hex_path", fileName);
             ui->progressBar->setMaximum(FLASH_SIZE - 1);
             watcher.setFuture(QtConcurrent::map(job_list, WorkerWrapper(this)));
-
         }
     }
 }
@@ -595,6 +594,7 @@ void MainWindow::reflash_finished(bool success)
 //Dump finished SLOT
 void MainWindow::dump_finished(QString result)
 {
+    Refresh();
     if(result.isEmpty())
         QMessageBox::information(this, "TL866", "Firmware dump complete!");
     else
diff --git a/TL866_Updater/QT/usb_win.cpp b/TL866_Updater/QT/usb_win.cpp
index 821f29d..4de10c0 100644
--- a/TL866_Updater/QT/usb_win.cpp
+++ b/TL866_Updater/QT/usb_win.cpp
@@ -112,7 +112,7 @@ bool USB::isOpen()
 size_t USB::usb_read(unsigned char *data, DWORD size)
 {
     DWORD bytes_read;
-    uchar buffer[4];
+    uchar buffer[6];
     if (hDriver == INVALID_HANDLE_VALUE)
         return 0;
     EnterCriticalSection(&lock);