hi all sifu..need help.

just now my phone got WSOD after the sony logo.
from what i read @ net...all suggest to flash it back or update with sony update...so i did it..

the WSOD seems gone! n my phone boot up like normal. BUT ....can't detect any sim i put it...y ar?

i check with xs++ firmware DB2020 CID53

huhuhuhu HELPPPPPPPPPPPPPPPPPPPPPPPPPP!!!~