Refurbishment is the process of maintenance or major repair of an item, either aesthetically or mechanically.
Refurbished products cannot be sold as new products, which is why they are relabeled as refurbished or refreshed units even if they are good-as-new (if, for example, the unit was returned for some reason unrelated to the product itself, such as the customer changing their mind about the color). Refurbished items may have scratches, dents or other forms of cosmetic damage which do not affect the performance of the unit.
Refurbished products could possibly be the products which are returned by the customer within the 90 day period Returns Policy of the company which sold the product, without any defect with the product. Refurbished products are generally bench tested and certified by the authorized service centers of the company and then re-packaged with the labeled as a Refurbished Product on it.
Many retailers sell products labeled refurbished. They generally are sold at lower prices than new products. Refurbished items are generally thought to be cheap and poorly fixed products because of their shorter warranty. However, some products have nothing wrong with them, they were simply exchanged over incompatibility or are cosmetically damaged. Most mechanical fixes are by trained technicians who work for the original company that distributed the product.