Lenovo IdeaPad S10-3s User Manual page 84

Appendix C. Lenovo limited warranty
Some problems can be resolved with a replacement part that you can install
yourself called a "Customer Replaceable Unit" or "CRU." If so, your Service
Provider will ship the CRU to you to install.
If your problem cannot be resolved over the telephone or remotely, through
your application of software updates or the installation of a CRU by you,
your Service Provider will arrange for service under the type of warranty
service designated for the product under the section titled "Warranty
information."
If your Service Provider determines that it is unable to repair your product,
your Service Provider will replace it with one that is at least functionally
equivalent.
If your Service Provider determines that it is unable to either repair or replace
your product, your sole remedy is to return the product to your place of
purchase or to Lenovo for a refund of your purchase price.
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