well as youve got a bricked system you could try the downgrade its sed to not work but you might aswell try it look here
download the files here:
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Step 1.) Download the files needed above.
Step 2.) Format a USB device to fat32. Make sure their is nothing on the USB device, or this will not work. Extract the lv2 file from folder 1, and place it on your USB device along with the Firmware you chose.
Step 3.) Insert your USB device into the Right-Most USB port on your PS3. (Closest to the Disc Reader.) Turn your PS3 on, and your screen will be black. Wait for a little bit, and your PS3 will turn itself off. If it fails to turn off within 25 minutes, turn it off manually.
Step 4.) Turn your PS3 back on, and you'll see the recovery menu. Once you know you see the recovery menu, go ahead and turn your PS3 off. Now, unplug the USB device from the PS3, and insert it into the USB port onto your PC. Erase everything off of your USB. Extract the lv2 file from folder 2 and place it on your root of your USB device.
Step 5.) Insert your USB device back into the Right-Most USB port. Now, turn your PS3 on, it will be unbricked with the firmware you chose to put on the USB drive in step 3.
Good luck.
let us know wether it works