Ps4 has stopped working?

My little brother has a problem starting the Playstation and I don't know what to do.

Do what it says.

Can't you read?

Everything is already there. You have to go to Playstation.com and download the update file. There everything is explained in more detail what needs to be done so that it works.

In order to be able to play the update file on the PS4, you will of course need a data carrier such as a USB stick. For this I recommend one that is not more than 8 GB in size.

Here is a direct link to the update:

https://www.playstation.com/...-software/

Just read and run.