Hi Our dear customer,

There is some customer refer to the fan noise issue and if you got the same trouble with halobook, you could do a EC firmware upgrade to fix it and here is the link to download the firmware and instruction: https://drive.google.com/file/d/1B3orMYklIlYhqLBRVksb6pXMQ9ZArncf/view?usp=share_link

If you have any other problem with our laptop, pls feel free to contact us at: service@bitecool.com