fix: only hide pin after successful authentication in SerialBLEInterface

src/helpers/esp32/SerialBLEInterface.cpp

@@ -66,7 +66,7 @@ bool SerialBLEInterface::onSecurityRequest() {
 void SerialBLEInterface::onAuthenticationComplete(esp_ble_auth_cmpl_t cmpl) {
   if (cmpl.success) {
     BLE_DEBUG_PRINTLN(" - SecurityCallback - Authentication Success");
-    //deviceConnected = true;
+    deviceConnected = true;
   } else {
     BLE_DEBUG_PRINTLN(" - SecurityCallback - Authentication Failure*");
 
@@ -88,8 +88,6 @@ void SerialBLEInterface::onConnect(BLEServer* pServer, esp_ble_gatts_cb_param_t
 
 void SerialBLEInterface::onMtuChanged(BLEServer* pServer, esp_ble_gatts_cb_param_t* param) {
   BLE_DEBUG_PRINTLN("onMtuChanged(), mtu=%d", pServer->getPeerMTU(param->mtu.conn_id));
-
-  deviceConnected = true;
 }
 
 void SerialBLEInterface::onDisconnect(BLEServer* pServer) {