diff --git a/js/stm32dfu.js b/js/stm32dfu.js
index fa6a4c403b..87d7a54411 100644
--- a/js/stm32dfu.js
+++ b/js/stm32dfu.js
@@ -447,7 +447,56 @@ STM32DFU_protocol.prototype.upload_procedure = function(step) {
             load_read_address();
             break;
         case 6:
-            self.upload_procedure(99);
+            // jump to application code
+            function clear_before_leave() {
+                self.controlTransfer('out', self.request.CLRSTATUS, 0, 0, 0, 0, function() {
+                    self.controlTransfer('out', self.request.CLRSTATUS, 0, 0, 0, 0, function() {
+                        self.controlTransfer('in', self.request.GETSTATUS, 0, 0, 6, 0, function(data) {
+                            if (data[4] == self.state.dfuIDLE) {
+                                load_starting_address();
+                            } else {
+                                // throw some error
+                                console.log(data);
+                            }
+                        });
+                    });
+                });
+            }
+
+            var address = self.hex.data[0].address;
+
+            function load_starting_address() {
+                self.controlTransfer('out', self.request.DNLOAD, 0, 0, 0, [0x21, address, (address >> 8), (address >> 16), (address >> 24)], function() {
+                    self.controlTransfer('in', self.request.GETSTATUS, 0, 0, 6, 0, function(data) {
+                        if (data[4] == self.state.dfuDNBUSY || data[4] == self.state.dfuUPLOAD_IDLE) { // completely normal
+                            var delay = data[1] | (data[2] << 8) | (data[3] << 16);
+
+                            setTimeout(function() {
+                                self.controlTransfer('in', self.request.GETSTATUS, 0, 0, 6, 0, function(data) {
+                                    if (data[4] == self.state.dfuDNLOAD_IDLE || data[4] == self.state.dfuUPLOAD_IDLE) {
+                                        leave();
+                                    } else {
+                                        console.log(data);
+                                    }
+                                });
+                            }, delay);
+                        } else {
+                            console.log(data);
+                        }
+                    });
+                });
+            }
+
+            function leave() {
+                self.controlTransfer('out', self.request.DNLOAD, 0, 0, 0, 0, function() {
+                    self.controlTransfer('in', self.request.GETSTATUS, 0, 0, 6, 0, function(data) {
+                        self.upload_procedure(99);
+                    });
+                });
+            }
+
+            // start
+            clear_before_leave();
             break;
         case 99:
             // cleanup