Thank you for visiting our after-sales self-service web page. Here, we hope that you will be able to resolve whatever problems you are experiencing. We're very sorry for whatever inconvenience your purchase may have caused you. Please kindly be advised that all of our products have a full 18-month warranty. If your product does not meet your needs within this period, feel free to contact us below in order to let us know what we can do to help you. Moreover, as a reminder, if you are having trouble using one of our products, you can always refer to the FAQ or Instruction Manuals section on our website, where you may be able to resolve the issue yourself. Thank you in advance for all of the information you are providing.