Unhappy [Q] Help! I bricked my Sony Live with Walkman

Hello,

My Sony Live gets stuck at boot logo "Sony Ericsson", I cant get into cwm. It happened after I installed Jelly bean MIUI v.5 but forgot to install kernel, instalation and everything went ok... but it doesnt wake up now. Would flashing kernel maybe help ?

but i am able to connect it in flashmode to pc.
and i have stock rom nandroid backup.

what should i do?