diff --git a/main.c b/main.c
index 0ee6923..7577488 100644
--- a/main.c
+++ b/main.c
@@ -676,7 +676,7 @@ int main(int argc, char *argv[])
 		libusb_close(usb_device);
 		sleep(1);
 	}
-	while(loop || desc.iSerialNumber == 0);
+	while(loop || desc.iSerialNumber == 0 || desc.iSerialNumber == 3);
 
 	libusb_exit(ctx);