Ya se pueden quitar las lineas de fondo de pantalla en las 1.5

Here is the tutorial:

It's a lot of hype over a single byte change?, i can't beleive that crap, anyway if you feel like removing the wavey lines from your background, all you have to do is go open this file :

flash0:\vsh\resource\system_plugin_bg.rco

Go to offset 0x00000646 and change the value from 35AF to 37AF, simple!, basically what it does is break the code for the actual lines, thus disabling them, but as with all firmware 'mods' i highly suggest you only do this using MPH's firmware loader or with Flash0 emulation enabled in umd emulator 0.8, Flashing edited files to your firmware can brick your psp, so do the sensible thing okay people?

Now why on earth, after telling canti exactly that, does he/she go around like it's some sort of special discovery?…
You can download the original video of the file modification in action right here.

Going into greater detail, thar be basically two versions :

Fluff's : Go to offset 0x00000646 and change the value from 35AF to 37AF
pyro's : Go to offset 0x00001B74 and change the value from CCBC to 00BC

While the edits are indeed in difference places the overall results remains the same, you could do a simple byte edit in a thousand places of the file and it would break the lines just like the two above edits! how dull.

Enjoy either way ~

In fact, you can flash the modified file into your flash0 with the help of Placasoft’s PSPset. If you miss the lines later, you can change the value you edited to its initial, then flash again. The lines will come back immediately. I’ve tested this by myself.

You can watch the video proof [here].

-----------------------------------------------------------------------------

Asi por encima lo que dice es que cambiando un solo byte en la FLASH de la PSP se eliminan las lineas de fondo.

El proceso conlleva riesgos porque se hace en la FLASH.

fuente: PSP UPDATES