diff --git a/js/port_handler.js b/js/port_handler.js
index 58e464fdf..2dc395fd2 100755
--- a/js/port_handler.js
+++ b/js/port_handler.js
@@ -1,7 +1,10 @@
 'use strict';
 
 var usbDevices = {
-    STM32DFU: {'vendorId': 1155, 'productId': 57105}
+    filters: [
+        {'vendorId': 1155, 'productId': 57105}, 
+        {'vendorId': 11836, 'productId': 57105}
+    ]
 };
 
 var PortHandler = new function () {
@@ -152,7 +155,7 @@ PortHandler.check = function () {
 };
 
 PortHandler.check_usb_devices = function (callback) {
-    chrome.usb.getDevices(usbDevices.STM32DFU, function (result) {
+    chrome.usb.getDevices(usbDevices, function (result) {
         if (result.length) {
             if (!$("div#port-picker #port [value='DFU']").length) {
                 $('div#port-picker #port').append($('<option/>', {value: "DFU", text: "DFU", data: {isDFU: true}}));
@@ -166,7 +169,7 @@ PortHandler.check_usb_devices = function (callback) {
             self.dfu_available = false;
         }
 
-        if(callback) callback(self.dfu_available);
+        if (callback) callback(self.dfu_available);
     });
 };
 
diff --git a/js/protocols/stm32.js b/js/protocols/stm32.js
index bb4791528..eabce18a9 100644
--- a/js/protocols/stm32.js
+++ b/js/protocols/stm32.js
@@ -115,7 +115,7 @@ STM32_protocol.prototype.connect = function (port, baud, hex, options, callback)
                                 PortHandler.check_usb_devices(function(dfu_available) {
                                     if (dfu_available) {
                                         clearInterval(interval);
-                                        STM32DFU.connect(usbDevices.STM32DFU, hex, options);
+                                        STM32DFU.connect(usbDevices, hex, options);
                                         return;
                                     }
                                     // Check for the serial port
diff --git a/js/protocols/stm32usbdfu.js b/js/protocols/stm32usbdfu.js
index 306550ff6..726d79a0d 100644
--- a/js/protocols/stm32usbdfu.js
+++ b/js/protocols/stm32usbdfu.js
@@ -336,6 +336,8 @@ STM32DFU_protocol.prototype.getChipInfo = function (_interface, callback) {
             // H750 SPRacing H7 EXST: "@External Flash /0x90000000/998*128Kg,1*128Kg,4*128Kg,21*128Ka"
             // H750 SPRacing H7 EXST: "@External Flash /0x90000000/1001*128Kg,3*128Kg,20*128Ka" - Early BL firmware with incorrect string, treat as above.
 
+            // AT32F435: "@Internal Flash   /0x08000000/512*002Kg,@Option byte   /0x1FFFC000/01*512 g"
+
             // H750 Partitions: Flash, Config, Firmware, 1x BB Management block + x BB Replacement blocks)
             if (str == "@External Flash /0x90000000/1001*128Kg,3*128Kg,20*128Ka") {
                 str = "@External Flash /0x90000000/998*128Kg,1*128Kg,4*128Kg,21*128Ka";
@@ -617,6 +619,11 @@ STM32DFU_protocol.prototype.upload_procedure = function (step) {
             });
             break;
         case 1:
+            // workaroud for AT32
+            if (typeof self.chipInfo.option_bytes === "undefined" && typeof self.chipInfo.option_byte !== "undefined") {
+                self.chipInfo.option_bytes = self.chipInfo.option_byte;
+            }
+
             if (typeof self.chipInfo.option_bytes === "undefined") {
                 console.log('Failed to detect option bytes');
                 self.cleanup();
diff --git a/manifest.json b/manifest.json
index f5a6eab80..bb8c8beb8 100644
--- a/manifest.json
+++ b/manifest.json
@@ -47,7 +47,8 @@
         "notifications",
         "alwaysOnTopWindows",
         {"usbDevices": [
-            {"vendorId": 1155, "productId": 57105}
+            {"vendorId": 1155, "productId": 57105},
+            {"vendorId": 11836, "productId": 57105}
         ]}
     ],
 
diff --git a/tabs/firmware_flasher.js b/tabs/firmware_flasher.js
index 93cc5b807..cfcabb093 100755
--- a/tabs/firmware_flasher.js
+++ b/tabs/firmware_flasher.js
@@ -405,7 +405,7 @@ TABS.firmware_flasher.initialize = function (callback) {
                                 GUI.log('<span style="color: red">Please select valid serial port</span>');
                             }
                         } else {
-                            STM32DFU.connect(usbDevices.STM32DFU, parsed_hex, options);
+                            STM32DFU.connect(usbDevices, parsed_hex, options);
                         }
                     } else {
                         $('span.progressLabel').text(chrome.i18n.getMessage('firmwareFlasherFirmwareNotLoaded'));