My best advice is to uninstall the drivers you tried.

If you're like me you've already tried different drivers, including Qualcomm USB drivers for 90. The solution is in fact to download Color.zip from !BkpwyYSB!rkYSkF.p1-MX1cLLtaiRo. First, thanks to all who contributed, found the needed files and solution. OK, as promised I wanted to write up more detailed steps on how I unbricked my OPO.