Lenovo Safety and General Information Guide - Manual (Page 28)

Chapter 3. Getting help and service
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Refer to your Lenovo hardware warranty for a full explanation of Lenovo
warranty terms. Be sure to retain your proof of purchase to obtain warranty
service.
If possible, be near your computer when you make your call in case the
technical assistance representative needs to help you resolve a computer
problem. Please ensure that you have downloaded the most current drivers
and system updates, and recorded information before you call. When calling
for technical assistance, please have the following information available:
• Machine Type and Model
• Serial number of your computer and your proof of purchase
• Description of the problem
• Hardware and software configuration information for your system
Note: For the latest list of customer support center telephone numbers and hours
of operation, go to http://support.lenovo.com. If the number for your
country or region is not listed, contact your Lenovo reseller or Lenovo
marketing representative.