(adsbygoogle = window.adsbygoogle || []).push({}); Hi all im not a gamer i received like 2 xbox360 and 3 ps3 fat CECHG03 with a 4.21 fw first i font know nothing

about gaming console i didn't play since snes ! so basically i sold them all but one ps3 got a broken spu i fixed the issue

and its running now stable but my question is i wanted to downgrade to 3.5 to install Linux or something and i know that

4.21 ofw is impossible without a flasher so basically i started to check and search on forums and i saw that if you

console got the install packages menu and the /app_home/PS3_GAME basically its jail broken but when i go to firmware

information it tells me that im using 4.21 nothing beside that !! when i want to downgrade it using the rebug down

grader its doesn't work it give the error corrupted data and so after the reboot not from the first time

and when i install a package it install with success but when i run it screen stays black and the ps3 is stuck until i reboot it or force shutdown the only thing i want todo is to install linux on the box i dont play games !!!

so guys please help consider im a noob i dont know what is dex what cex or something like that so please if thats ok

can someone help and sorry for the longe post