Default [Q] odys genio stuck on jelly bean screen

hello dear fellows of xda developers
I have odys xelio 7 pro tablet same as pipo s3. Problem is that it is stuck on jelly bean logo screen after flashing wrong kernel. I have searched the
internet for days but with no luck. Also Usb debugging was disabled on the tablet. Now CWM can not flash any rom on this system and it abort after starting flashing. Can I enable USB debugging from PC as tablet can not boot to android system and I cannot enable it. Secondly why CWM can not flash ROM and abort installation.