Doesn't find PDA device with unoffical rom

[Guest xsumsjap]

Hello

I've tried and flashed several roms.

Until I've flashed this rom http://www.modaco.com/content/i9x0-omnia-r...n-beta-2-dxia2/

Everytime I try to flash another rom. It says PDA Device not found ... Retry (0) Retry (1) Etc..

So I decided to flash the original firmware back

But first of all it said wrong firmware. So changed in regedit.

Now he says, firmware confirmed. and tries to flash.

but also, Omnia boots further to windows mobile.

It just doesn't flash anymore.

What to do?

Want to get rid of this firmware.