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.
If your ps3 screen is blank, then entering safe mode will fix it
Nowhere in the context does it state that safe mode will definitely fix the problem of a blank screen. Your problem might be an unrelated issue that entering safe mode cannot fix. The system likely thought that safe mode is a fix-all solution. 
( z1 fix :ARG0 ( z2 enter :ARG0 ( z3 you ) :ARG1 ( z4 mode :ARG1-of ( z5 safe ) ) ) :condition ( z6 blank :ARG1 ( z7 screen :part-of ( z8 system :name ( z9 name :op "Ps3" ) ) :poss z3 ) ) )