Hello everyone.
I don't know if this is already known or not, but since i only see alot of people everywere asking for help, from a brick, of a bad downgrade, or a mistake when returning from dex to cex, i'm posting this small finding by me, so i hope it can help alot of you.
I've done this on a 60GB PS3 with NAND, it my also work on NOR PS3.
What i've done? I was trying to go back on CEX, when by mistake, after flashing the nand, i turned it off on power button. Doing this, gives you a small brick. So i decided to test a way that i found to install a partiall "cex/dex" FW, if i can cal that, that was downgrading using CFW rogero v3.4 (v3.7 also works). So, i connected my jailbreak pen in downgrade mode, to prepare the PS3 for downgrade. Ps3 will turn off. Now swap it with a normal usb pen, with rogero cfw v3.4 or v3.7 and FILE1 lv2diag.self on the root of it. Connect it to the most right usb door, and press power button, let the ps3 do its job, when you see ps3 is turned off, remove usb, delete all files on it, and swap FILE1 with FILE2 lv2diag.self, also known as lv2diag_exit.self. Connect it again to the same usb door. Turn PS3 on power button, it will flash and turn off automaticly. Then, remove USB, and power on PS3, it will now be out of a brick.
This may also work downgrading from OFW 3.70 to OFW 3.55, but im still testing this.
I will also try if may also work on other higher FW like 4.21.
PS: I'm not responsible for any wrong move from any user using this finding. I'm just trying to help people who have a bricked PS3, that has nothing to lose on testing this. Feel free to make questions, i'll try to answer if i know.
Don't Forget to get some feedback.
Regards
viperturbo
I don't know if this is already known or not, but since i only see alot of people everywere asking for help, from a brick, of a bad downgrade, or a mistake when returning from dex to cex, i'm posting this small finding by me, so i hope it can help alot of you.
I've done this on a 60GB PS3 with NAND, it my also work on NOR PS3.
What i've done? I was trying to go back on CEX, when by mistake, after flashing the nand, i turned it off on power button. Doing this, gives you a small brick. So i decided to test a way that i found to install a partiall "cex/dex" FW, if i can cal that, that was downgrading using CFW rogero v3.4 (v3.7 also works). So, i connected my jailbreak pen in downgrade mode, to prepare the PS3 for downgrade. Ps3 will turn off. Now swap it with a normal usb pen, with rogero cfw v3.4 or v3.7 and FILE1 lv2diag.self on the root of it. Connect it to the most right usb door, and press power button, let the ps3 do its job, when you see ps3 is turned off, remove usb, delete all files on it, and swap FILE1 with FILE2 lv2diag.self, also known as lv2diag_exit.self. Connect it again to the same usb door. Turn PS3 on power button, it will flash and turn off automaticly. Then, remove USB, and power on PS3, it will now be out of a brick.
This may also work downgrading from OFW 3.70 to OFW 3.55, but im still testing this.
I will also try if may also work on other higher FW like 4.21.
PS: I'm not responsible for any wrong move from any user using this finding. I'm just trying to help people who have a bricked PS3, that has nothing to lose on testing this. Feel free to make questions, i'll try to answer if i know.
Don't Forget to get some feedback.
Regards
viperturbo