diff --git a/src/ble_midi_transport.cpp b/src/ble_midi_transport.cpp
index f6112b2..9ce7b30 100644
--- a/src/ble_midi_transport.cpp
+++ b/src/ble_midi_transport.cpp
@@ -1,6 +1,9 @@
 #include "ble_midi_transport.h"
 #include <Arduino.h>
 #include <NimBLEDevice.h>
+#include <esp_bt.h>
+#include <esp_bt_main.h>
+#include <esp_bt_device.h>
 
 #define BLE_MIDI_SERVICE_UUID    "03B80E5A-EDE8-4B33-A751-6CE34EC4C700"
 #define BLE_MIDI_CHAR_UUID       "7772E5DB-3868-4112-A1A9-F2669D106BF3"
@@ -44,14 +47,24 @@ BleMidiTransport::~BleMidiTransport() {
 bool BleMidiTransport::begin() {
     Serial.println("[BLE] Initializing BLE MIDI...");
 
-    // NimBLE-Arduino v1.4.0+ handles ESP32-S3 internally, using
-    // bt_cfg.bluetooth_mode = ESP_BT_MODE_BLE. Do NOT pre-init the
-    // BT controller here or NimBLEDevice::init() will see an
-    // error from double-init and abort via ESP_ERROR_CHECK.
     Serial.println("[BLE] NimBLEDevice init...");
+    esp_bt_controller_status_t ctrl_status = esp_bt_controller_get_status();
+    Serial.printf("[BLE] BT controller status before init: %d (0=IDLE,1=INITED,2=ENABLED)\n", ctrl_status);
+
     NimBLEDevice::init("JOC Midi");
     Serial.println("[BLE] NimBLEDevice initialized");
 
+    ctrl_status = esp_bt_controller_get_status();
+    Serial.printf("[BLE] BT controller status after init: %d\n", ctrl_status);
+
+    const uint8_t* mac = esp_bt_dev_get_address();
+    if (mac) {
+        Serial.printf("[BLE] Device MAC: %02X:%02X:%02X:%02X:%02X:%02X\n",
+                      mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+    } else {
+        Serial.println("[BLE] Device MAC: NOT AVAILABLE");
+    }
+
     Serial.println("[BLE] Creating server...");
     ble_server = NimBLEDevice::createServer();
     if (!ble_server) {
@@ -95,7 +108,12 @@ bool BleMidiTransport::begin() {
     NimBLEAdvertising* adv = NimBLEDevice::getAdvertising();
     adv->addServiceUUID(BLE_MIDI_SERVICE_UUID);
     adv->setScanResponse(true);
-    adv->start();
+    adv->setMinInterval(160);  // 100ms (160 * 0.625ms)
+    adv->setMaxInterval(320);  // 200ms (320 * 0.625ms)
+    bool adv_started = adv->start();
+    Serial.printf("[BLE] adv->start() returned: %d\n", adv_started);
+
+    vTaskDelay(pdMS_TO_TICKS(500));
 
     if (adv->isAdvertising()) {
         Serial.println("[BLE] Advertising confirmed started");
@@ -103,6 +121,7 @@ bool BleMidiTransport::begin() {
         Serial.println("[BLE] WARNING: isAdvertising() reports false!");
     }
 
+
     initialized = true;
     Serial.println("[BLE] BLE MIDI advertising as 'JOC Midi'");
     return true;