Instruct: Classify Amazon reviews into positive or negative sentiment
Query: GPS Hardware error

Like others I've seen here, mine was Dead on Arrival. It turned on but gave me the "GPS hardware problem." I contacted customer service by email (was on hold too long on their toll-free number.) They gave me a return authorization within 24 hours. I just sent this back to the factory UPS at my cost of $10.50. Once it gets there, it will be up to 30 days before I get it back. Apparently the warranty is 2 years which is good, but I would recommend buying this with American Express or other credit card which extends the manufacturer's warranty. I'll update later when I receive a working product.