As far as sales go, the Playstation 4 had a rock solid start, but just like any popular product with high sales there will always be a number of devices which turn up to be dead on arrival. The Playstation 4 D.O.A.s have been reported to suffer from the Blue Light of Death, whereby the console's Blue power LED basically blinks repeatedly and the console never loads. Causes of the Blue Light of death include; Hard Disk Failure, TV compatibility issues, or Power Supply Failure. Sony Computer Entertainment have admitted to a 0.4% failure rate (which is really low), which affects 4000 of the 1 million consoles already sold.
Anyone affected by problems with the Playstation 4 console is recommended to make use of the Live Chat customer service.