All the Blackberry mobiles comes with one year warranty from the manufacturer 'Research In Motion'. But you can avail extended warranty with your retailer. Check that out, if you've paid for any extended warranty or not.
All Blackberry phones have warranty, I don't believe you can extend the period of the warranty without the permission of the company. Do not trust any online market if you don't read reviews about it first. Many scammers are out there and waiting to steal your money.
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