对于不提供serialNumber的设备，可以尝试使用其他设备属性来唯一标识设备，例如设备的IMEI或MAC地址。下面是一个使用IMEI来标识devicename的示例代码：

private static String getDeviceName(String imei) {
    String name = "Unknown";
    DeviceNameWithImei device = new DeviceNameWithImei(imei);
    name = device.load().getName();
    return name;
}

class DeviceNameWithImei extends AndroidManagementClient {
    private final String imei;

    public DeviceNameWithImei(String imei) {
        super();
        this.imei = imei;
    }

    @Override
    protected Device loadDevice(String name) {
        Device device = null;
        List devices = listDevices();
        for (Device d : devices) {
            if (d.getDeviceSettings().getDeviceIdentifier().getImei().equals(imei)) {
                device = d;
                break;
            }
        }
        if (device == null) {
            Log.e(TAG, "Device with IMEI: " + imei + " not found");
        }
        return device;
    }
}