The following illustration shows where to find the machine type and serial number of yourChromebook.Note: Depending on the country or region of delivery, the location of the machine type and serialnumber of your Chromebook might look different from the following illustrations.Lenovo Customer Support CenterDuring the warranty period, you can call Lenovo Customer Support Center for help.Telephone numbersFor a list of the Lenovo Support phone numbers for your country or region, go to https://pcsupport.lenovo.com/supportphonelist for the latest phone numbers.Note: Phone numbers are subject to change without notice. If the number for your country or region is notprovided, contact your Lenovo reseller or Lenovo marketing representative.Services available during the warranty period• Problem determination - Trained personnel are available to assist you with determining if you have ahardware problem and deciding what action is necessary to fix the problem.• Lenovo hardware repair - If the problem is determined to be caused by Lenovo hardware under warranty,trained service personnel are available to provide the applicable level of service.• Engineering change management - Occasionally, there might be changes that are required after a producthas been sold. Lenovo or your reseller, if authorized by Lenovo, will make selected Engineering Changes(ECs) that apply to your hardware available.Services not covered• Replacement or use of parts not manufactured for or by Lenovo or nonwarranted parts• Identification of software problem sources• Configuration of UEFI BIOS as part of an installation or upgrade• Changes, modifications, or upgrades to device drivers• Installation and maintenance of network operating systems (NOS)• Installation and maintenance of programsFor the terms and conditions of the Lenovo Limited Warranty that apply to your Lenovo hardware product,go to:• https://www.lenovo.com/warranty/llw_02Chapter 3. Help and support 17