PS4 blue light of death: what it means and what to try

You press the power button, the light on the front of your PS4 starts pulsing blue, and then nothing: no picture on the TV, or the console switches itself off again. Normally the light pulses blue briefly and then turns solid white once the system has started. When it never gets past blue, people call it the “blue light of death” (BLOD).

The name sounds final, but it isn’t always. The blue light only tells you the console started booting and didn’t finish, or couldn’t get a picture to the TV. That can be caused by something as simple as a cable or as serious as a fault on the main board. Here is how to narrow it down safely, and when to stop. If you'd rather hand it over, see our PS4 repair in London.

What usually causes the blue light

• No video handshake with the TV. The console may be running but can’t agree a picture with the TV, because of a faulty HDMI cable, the wrong TV input, or a TV port that isn’t working.
• A damaged HDMI port on the console. A cable that has been yanked or bent can push the pins inside the port out of line. This is one of the most common reasons for a blue light with no picture.
• Hard drive problems. If the internal drive has failed or worked loose, the console can’t load its system software.
• System software that didn’t install properly. An interrupted update can leave the console unable to start normally.
• Power supply faults. A failing internal power supply can let the console start and then cut out.
• Main board faults. Overheating over the years can damage the solder joints under the main processor (the APU) or other components. This is a board-level repair.

Checks you can safely do at home

Work through these in order. None of them involve opening the console beyond the hard drive bay, which Sony designed to be user-accessible.

1. Rule out the TV and cable. Try a different HDMI cable, a different HDMI input on the TV, and if possible a different TV or monitor. Make sure the TV is set to the right input before you power on.
2. Look at the HDMI port. With the console unplugged, shine a torch into the HDMI socket on the back. The row of pins should be straight and evenly spaced, with nothing loose or rattling. If it looks damaged, stop here: repeatedly plugging a cable into a damaged port can make it worse.
3. Fully power-cycle the console. Hold the power button until it beeps and shuts down, unplug the power lead from the wall for a minute, then plug it back in and try again.
4. Check the hard drive is seated. On the original PS4, Slim and Pro, the drive sits in a bay behind a panel. With the console unplugged, check that the drive and its screw are secure. If you have swapped the drive in the past, make sure it is properly pushed home.
5. Try Safe Mode. With the console off, hold the power button: it will beep once, then again after about seven seconds. Release it after the second beep, connect the controller with a USB cable and press the PS button. If you see the Safe Mode menu, the console, HDMI port and display are working, and the problem is likely software.

Using Safe Mode without losing your games

If you reach Safe Mode, start with the least drastic options. Try Restart, then Change Resolution, which can fix picture problems with some TVs. Rebuild Database reorganises the drive and doesn’t delete your games or saves, though it can take a while. Update System Software can repair a broken update. Avoid the Initialise options unless you accept losing everything on the console: they wipe the drive. Saves that have been uploaded to cloud storage (with PlayStation Plus) or copied to a USB stick can be restored afterwards, but anything else will be gone.

Things not to do

• Don’t keep switching the console on and off over and over if it is getting hot or cutting out; you can turn a small fault into a bigger one.
• Don’t try oven or heat-gun “fixes” you might see online. At best they are temporary; at worst they damage the board beyond repair.
• Don’t force an HDMI cable into a port that feels loose or blocked.

When it needs a repair

If you can’t reach Safe Mode at all, if the HDMI port looks damaged, if the console switches off on its own, or if there is a burning smell or visible damage, it is time for a technician. These faults need the console opened and tested properly: an HDMI port replacement, a power supply repair, or diagnosis on the main board. A proper diagnosis matters, because the same blue light can come from very different faults, and replacing parts by guesswork gets expensive.

Our PS4 repair service covers no power, no display and HDMI faults, and every job starts with a diagnostic assessment so you know what is wrong before any work is done. You can see typical costs on our pricing page, or read about our wider PlayStation repair service, including the PS5.