Yes I followed exactly what you said, but phoenix doesn't give me any download option. Anyway, just closed winflash and opened it again and it flashed all the way through but it gave me the original error:

bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
Timeout while waiting for the HWBREAK
Could not reboot into cold bootmode
[Pipe 6] Finishing in error state with status 1
========================================

So we are back at the beginning . . .