Xperia Z C6603 Dead BootLoader Please Help topic

My Xperia Z C6603 BootLoader is Dead. I've found a way to restore the BootLoader in the link: http://sony.yt/topic/7324-english-tu...3-c6606-c6616/
Here the post says to connect the test point to ground, I need to know how to connect to ground the test point in C6603 and when to connect USB and when to click TestReady and Ready.
I get the following error message while performing the steps:
# will use DLOAD protocol ...
# 0808010600900000
# 0D0F50424C5F446C6F6164564552322E30
# 162001000100
# 17004001000100E1907100
# 1801001EA8B0C1B209C88CBB3E220F0AC00F6E6520A273D516 B40E7F2EAEB0E5B3DB8B
# PHONE NOT SUPPORTED IN THIS MODE.


Please Help.