How to enter safe mode on a playstation 3<br>Know when to use safe mode. This is a good choice if : [substeps] Your ps3 starts up but the xmb menu doesn't come up (you only see the wave screen, instead). Your ps3 starts up but nothing happens on the screen.

Based on that paragraph can we conclude that this sentence is true?
How to enter safe mode is not actually discussed. 
Yes