diff --git a/resources/images/input_access_code_h2d_cn.png b/resources/images/input_access_code_h2d_cn.png
new file mode 100644
index 0000000000..1a29777339
Binary files /dev/null and b/resources/images/input_access_code_h2d_cn.png differ
diff --git a/resources/images/input_access_code_h2d_en.png b/resources/images/input_access_code_h2d_en.png
new file mode 100644
index 0000000000..a5bfc3b154
Binary files /dev/null and b/resources/images/input_access_code_h2d_en.png differ
diff --git a/src/slic3r/GUI/DeviceManager.cpp b/src/slic3r/GUI/DeviceManager.cpp
index d811540383..89956eb132 100644
--- a/src/slic3r/GUI/DeviceManager.cpp
+++ b/src/slic3r/GUI/DeviceManager.cpp
@@ -6843,6 +6843,8 @@ boost::bimaps::bimap<std::string, std::string> DeviceManager::get_all_model_id_w
     }
 
     for (wxString file : m_files) {
+        if (!file.Lower().ends_with(".json")) continue;
+
         std::string config_file = Slic3r::resources_dir() + "/printers/" + file.ToStdString();
         boost::nowide::ifstream json_file(config_file.c_str());