X8 soft bricked, forgot to turn on usb debugging

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http://forum.xda-developers.com – Hi, I just installed http://forum.xda-developers.com/show....php?t=1836116 and everything went good until I had to reboot, my phone got stuck on "Sony Ericsson". I did some research and found out I soft bricked my phone and that I need to install new kernel, I used http://forum.xda-developers.com/show....php?t=1836117 with flashtool but it keeps saying that my phone have usb debugging off. My problem now is I don't know how to turn debugging on without accessing phone settings, and I can't do that because my phone won't go past "Sony Ericsson". If you know how to turn us (HowTos)