diff --git a/src/ble_midi_transport.cpp b/src/ble_midi_transport.cpp
index 7bf2460..8842725 100644
--- a/src/ble_midi_transport.cpp
+++ b/src/ble_midi_transport.cpp
@@ -1,8 +1,6 @@
 #include "ble_midi_transport.h"
 #include <Arduino.h>
 #include <NimBLEDevice.h>
-#include <esp_bt.h>
-#include <esp_bt_main.h>
 
 #define BLE_MIDI_SERVICE_UUID    "03B80E5A-EDE8-4B33-A751-6CE34EC4C700"
 #define BLE_MIDI_CHAR_UUID       "7772E5DB-3868-4112-A1A9-F2669D106BF3"
@@ -46,21 +44,10 @@ BleMidiTransport::~BleMidiTransport() {
 bool BleMidiTransport::begin() {
     Serial.println("[BLE] Initializing BLE MIDI...");
 
-    // ESP32-S3 only supports BLE (not BTDM). We must init the controller
-    // with BLE-only mode BEFORE NimBLEDevice::init(), which internally
-    // uses BTDM and would fail on S3.
-    esp_err_t err;
-    err = esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT);
-    Serial.printf("[BLE] bt_mem_release: %d (%s)\n", err, esp_err_to_name(err));
-
-    esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
-    err = esp_bt_controller_init(&bt_cfg);
-    Serial.printf("[BLE] bt_controller_init: %d (%s)\n", err, esp_err_to_name(err));
-
-    err = esp_bt_controller_enable(ESP_BT_MODE_BLE);
-    Serial.printf("[BLE] bt_controller_enable(BLE): %d (%s)\n", err, esp_err_to_name(err));
-    if (err != ESP_OK) { initialized = false; return false; }
-
+    // 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...");
     NimBLEDevice::init("JOC Midi");
     Serial.println("[BLE] NimBLEDevice initialized");