Sony has published a troubleshooting guide for users experiencing problems with the new PlayStation 4.
Some users have complained about a blue light continuously flashing on their consoles, affecting its operation.
Sony said this could be triggered by various issues, including a problem with the PS4's power supply, hard drive or hardware or TV compatibility.
Some of the users highlighted the issues on Sony's US PlayStation forum.
"My PS4 turns on, blinks blue, turns white and won't connect to my TV," posted a user by the name of Newender.
Another user, Juggalugalotus, said: "Mine just blinks blue and I don't get any audio or video. Tried all four of my HDMI cables and checked all of the settings on the TV. Nothing.
"Basically we bought a $400 [£250] paperweight."
According to Sony, some of the problems associated with the blinking of the blue light could include no audio or video output to the TV and the console powering off.
The company has recommended that users facing such issues turn off the console completely by pressing the power button for seven seconds.
Source
If you have the PS4, are you having this blinking blue light problem?
*Will update this post if I can find the troubleshooting guide.