ok...thanks for the help.
Now I want to do another question...I have read my original firmware...and with kdx1.5 I write the key to the hacked firmware but I have a problem to run backup. Are displayed to insert the disk to xbox360 console.
I want try to manually edit the firmware...To open original firmware I used winhex but I don't understand what is the addres to read and write the key. I read that the addres is from 4000 to 4200 but when I read the original firmware and the original hacked firmware (do not patched) at this address I have the same value...
Thanks for the time you spend...
Remember that KDX only works with xtremeproper.bin, and not xtreme.bin.
There have been reports of the key being beyond $4200. Copy all information from $4000 until you see all FF's. This will include your key.