HarmonyOS鸿蒙Next中手机系统设置中已配对蓝牙连接后，APP连接该蓝牙，打开notify时报2900099或2900007

HarmonyOS鸿蒙Next中手机系统设置中已配对蓝牙连接后，APP连接该蓝牙，打开notify时报2900099或2900007

import ble from '@ohos.bluetooth.ble';

const BUSINESS_SERVICE_UUID = "xxxx";
const NOTIFY_CHARACTERISTIC_UUID = "xxxx";

// 创建客户端
const device = ble.createGattClientDevice(mac);
// 注册回调
device.on("BLEConnectionStateChange", (state) => {
  console.info("Ble connection state did change " + state.state);
  if (state.state === bleConstant.ProfileConnectionState.STATE_CONNECTED) {
    // 设置MTU
    device.setBLEMtuSize(247);
  }
});
device.on("BLEMtuChange", async (mtu) => {
  console.info(`Ble mtu did change, mtu = ${mtu}`);
  // 发现特征
  const services = await device.getServices();
  let notifyCharacteristic: ble.BLECharacteristic | undefined;
  for (const service of services) {
    if (BUSINESS_SERVICE_UUID === service.serviceUuid) {
      const characteristics = service.characteristics;
      for (const characteristic of characteristics) {
        if (NOTIFY_CHARACTERISTIC_UUID === characteristic.characteristicUuid) {
          notifyCharacteristic = characteristic;
        }
      }
    }
  }
  if (!notifyCharacteristic) {
    console.warning(`Ble open notify failed: ${NOTIFY_CHARACTERISTIC_UUID} is not found`);
    return;
  }
  try {
    await device.setCharacteristicChangeNotification(notifyCharacteristic, true);
    console.info(`Ble open notify success`);
  } catch (error) {
    console.error(`Ble open notify failed: ${JSON.stringify(error)}`);
  }
});
// 开始连接
device.connect();

代码如上， 按照流程APP连接蓝牙->配对->手机系统设置蓝牙处于已连接状态->APP断开蓝牙->APP再次连接蓝牙操作后报错，报错日志为：

Ble open notify failed: {"code":2900007,"message":"Inner error."}