You don't need the CPU Key to reflash the Nand.

The console doesn't come on because the Nand wasn't flashed properly. After a re-flash it will be fine.

Do you have the nand backed up?

You can reflash the nand by soldering a Nand-X or Jrunner ...

If you can't boot into Xell then it's most likely a bad Nand flash.

Since you just dumped your Nand you should be fine. Back it up and flash it with a Nand-X or JRunner or have someone do it for yo ...

I added you on Skype in case you still need some help.

You can use an X360 USB Pro2 or a CK3i.

The USB Pro v2 comes with the power that the CK3i gives and the ability to write to the drive like the x360 USB PRO v1.

Remember you need either a VIA 642 ...

The Demon chip lets you run 2 NANDs. You have your Retail NAND that you can use to get online but you won't have any JTAG/RGH Capabilites and then you can switch to your JTAG/RGH NAND but it doesn't a ...

The system update folder?

You mean like $$ystemupdate ?

You don't need that if you're already updated.

Make sure XRPC.xex and xbdm.xex are in the root of whatever device you're using.

After that make sure XRPC is the first plugin and xbdm is the second. Save the settings and reboot.

It should wo ...

If you mean dashlaunch plugins then they should work in the root of a USB or external HDD.

This should be posted here: http://www.thetechgame.com/Forums/f=180/xbox-360-jtag-discussion.html

But that's fine.

Press the power button to start the console up, right after you've clicked the ...