Some users may experience an issue with their console emitting a sound during the first firmware update. In some cases, that sound may be high pitched. Unfortunately, this is unavoidable for the first firmware update. Future updates, if released, will not have the same issue. We apologize for any confusion, or worry this may have caused. Please allow your units to complete the firmware update.
If you had any issue with the update, or have any issues completing a firmware update, please, refer to this link to resolve the issue.