my sony k530 flashed with w660 doesnot turnon... please help me

after successfully crossflashed to w660, my mobile works for 6 months....
But yesterday when i tried to charge my battery, my mobile turned off..
and never turned on and cannot able to connect with xs, omnius, seus......
What can i do.......
Please help me................

don't know exactly but i think that your EROM is damaged, or maybe it's another problem. read here how to fix it:
Upgrading or repairing the EROM (FOTA) in phones CID 49 or CID 51 with Phone XS