I'm trying to unlock my k800i. Everything goes ok, but when i will apply the patch to unlock i get the following message.

Trying to launch embedded bootloader...
Abort all operations.
embedded flashloader not responds !
Elapsed:33 secs

When i connect the phone by pressing "C", the phone starts up and goes to file transfer by usb.

I followed all steps from the unlock tutorial from simox (Remove SIM-lock patch generator - Top Sony Forums)

Who can help me??????