If the product is defective, it comes with warranty by the manufacturer (from 6 months to 5 years). Each product warranty its written in product details. Products not subject to warranty can not be returned (such as cables, cases, Software, adapters, etc.) due to the nature of the product and are not covered by warranty.
If the product is misused (breaks, cracks, humidity, etc.), it is automatically excluded from warranty and the repair costs are charged only to the customer.