There are several options when doing reflash from CF. Are you sure that you did it with format option?
Normally, if you reflash with format option, you should have no problem connecting to European iDS to get updates. Since reflash from CF with format option is the last solution on user side, if it does not help, then you may have to send it back to iRex.
In fact, there may be another way to rescue malfunctioning or bricked iLiad. You can create a bootable CF and use it to boot and copy some files to make iLiad back to normal. See this thread: https://www.mobileread.com/forums/showthread.php?t=44429
. But since you don't have shell access, I guess this approach does not apply to your situation.