I was trying to install a custom firmware quite a while ago. The guide told me to go into recovery mode to install the firmware. I did not differentiate between recovery and service mode, and ended up getting a RSOD. I can't remember what I did but I got back to service mode. I thought that it was all too hard so I tried to downgrade back to 3.41 (I was on 3.55 at the time).
The USB just stopped doing anything, and I waited for ages so I just switched it off at the back. On the usb it said something about a manufacturing update error. Now whenever I turn on the PS3 it stays on for about 15 seconds and turns straight off again. No YLOD or flashing red light, just turns straight off as it usually would. Screen flickers, but no audio or video output on provided cables.
I CANNOT GET INTO RECOVERY MODE, SO DO NOT SAY THAT I SHOULD TRY AGAIN. It is a CECHG UK model BC 60gb Ps3. I have wiped the hard drive and it has not changed a thing.
I had the same issue months ago with my CECHC PAL model. The only thing that helped me out, was my PS3UsbJailbreak Downgrader, which allows me to upgrade/downgrade to an 3.41 official Sony Firmware. You should try it with an stock 3.41 and modified Firmware. I think there is a good chance to recover your PS3 back to life.
If Zetski's method does not work, I will try oversoldier's. Thanks for the responses guys.
Also, what I used to enter service mode before was the psgroove port to my ipod touch 1g. Is that able to be used for a downgrade/upgrade?
Oh, and also, it is a CECHC not a CECHG /facepalm
Hmmm okay I tried using LVdiag file 2 in the far right port and it did as usual, and Recovery mode still does not work. I've noticed that the screen does flicker after the double beeps in the recovery mode process.
Last edited by ThetaSigma; 10-11-2011 at 04:08 AMReason: Automerged Doublepost