Well i was downgrading it from 3.55 to 3.41... i unplugged the power cord of the ps3 then hooked d jailbreak usb press power and eject at the same time i confirmed that i was in the service mode then i turned it off then i hooked my fat32 usb with the lv2diag.self (file 1) from the archive and the ps3updat.pup 3.41 fw then turned it on and there was nothing.
i thought that it was normal so i've waited for about 30minutes and then still no picture...then i restarted my console then a message appears saying that the system software cannot be run correctly.
Press the ps button to try to restart the system..if the system cannot be restarted, you must reinstall the system software. Connect storage media that contains update of version 3.55 or later.
i followed the instructions but nothing seems to be working... what shall i do?! help pls..
Was there any file permissions changed on the drive before you tried? If I remember I think the upgrade makes a copy on the drive 1st then tests it,before doing a soft reset, before installing from that copy. If the drive is messed up with permissions, it may hinder upgrading.
Do you have a drive you could swap out and try. This is only an idea, not something I know to work, but thats what I would try 1st, knowing how pissy a ps3 gets when upgrading with a duff BDVD drive.
You may have bricked your console. Did you turn off the system while the system was updating the firmware? It is imperative that you do not mess with the PS3 system update is in progress because file systems could get corrupt rendering your system useless.