Cid 53 sony ericsson w850

please help.
i wanted to install flash menus onto my phone W850I but, it was necessary to flish it.
i did it with setoll2 but my CID was prevuously 51 now it's 53. but now the the phone can't see network and the screen is flashing time to time. i need MAIN and FS files to flash it again.
please help

You cann't find these CID53 files, only update via SEUS.

thanks for the answer. i tryed it several time (SEUS) but the problem still reamins.
please, another solutions?

Use Omnius - another free solution for SonyEricssons and downgrade to CID52.