diff --git a/include/led_stub.h b/include/led_stub.h
index 87ce4cd..5537f37 100644
--- a/include/led_stub.h
+++ b/include/led_stub.h
@@ -35,8 +35,6 @@ private:
     bool initialized;
     uint32_t activity_off_time = 0;
     uint8_t saved_r = 0, saved_g = 0, saved_b = 0;
-    uint32_t heartbeat_time = 0;
-    uint8_t heartbeat_phase = 0;
     
 public:
     DefaultLedStub();
diff --git a/pre_build.py b/pre_build.py
index 44255af..603e007 100644
--- a/pre_build.py
+++ b/pre_build.py
@@ -30,12 +30,15 @@ def patch_usb_ids():
             '#define USB_PID 0x1001',
             '#define USB_PID 0x0103'
         )
-        # Add manufacturer/product if not present
+        # Add or replace manufacturer/product
         if 'USB_MANUFACTURER' not in content:
             content = content.replace(
                 '#define USB_PID 0x0103',
-                '#define USB_PID 0x0103\n#define USB_MANUFACTURER "Novation"\n#define USB_PRODUCT "Launchpad X"'
+                '#define USB_PID 0x0103\n#define USB_MANUFACTURER "JOC"\n#define USB_PRODUCT "JOC Midi"'
             )
+        else:
+            content = content.replace('USB_MANUFACTURER "Novation"', 'USB_MANUFACTURER "JOC"')
+            content = content.replace('USB_PRODUCT "Launchpad X"', 'USB_PRODUCT "JOC Midi"')
         
         with open(pins_file, 'w') as f:
             f.write(content)
diff --git a/src/led_stub.cpp b/src/led_stub.cpp
index 4319482..8e4b3fb 100644
--- a/src/led_stub.cpp
+++ b/src/led_stub.cpp
@@ -294,19 +294,4 @@ void DefaultLedStub::update() {
         mux_ptr->show();
         activity_off_time = 0;
     }
-
-    // Heartbeat: pulse LED 9 slowly (amber)
-    if (now - heartbeat_time > 2000 && !activity_off_time) {
-        heartbeat_time = now;
-        heartbeat_phase = 1;
-    }
-    if (heartbeat_phase && !activity_off_time) {
-        uint8_t brightness = (heartbeat_phase < 100) ? (heartbeat_phase * 2) : (400 - heartbeat_phase * 2);
-        if (!led_states[9].active) {
-            mux_ptr->set_led_color(9, brightness, brightness / 4, 0);
-            mux_ptr->show();
-        }
-        heartbeat_phase++;
-        if (heartbeat_phase > 200) heartbeat_phase = 0;
-    }
 }