hum you sure your tag on your laptop is cq3t20ix
your tag number is just unknown out there on the internet... weird.
if your unsure goto https://support.hp.com/us-en/products/ and let it find it.
or :
Product Number is used when searching the HP web site for drivers, updated software, or updated BIOS, and support information.
1999 -2008: All models - Product Number printed on the Service Tag affixed to the bottom of the notebook.
2008 - 2009: Most models - Service Tag inside battery compartment.
2010 and later: Service Tag inside battery compartment, or inside bottom cover on mini notebooks.