canon gp 405 service tool

[vikas_intel]

I have encountered a problem in upgrading of rom version gp 405.when using srevice tool,after registering firmware for gp 405/ip rom version 47.04,when go for down loading and uploading screen keeping machine downloader switch in load position,it show id error.I have checked all the connections between machine and computer.Software for service tool is already been installed in my hardisk.Can any body tell me what should do know.

[raman]

I have encountered a problem in upgrading of rom version gp 405.when using srevice tool,after registering firmware for gp 405/ip rom version 47.04,when go for down loading and uploading screen keeping machine downloader switch in load position,it show id error.I have checked all the connections between machine and computer.Software for service tool is already been installed in my hardisk.Can any body tell me what should do know.
are you using bi-directional parallel cable for downloader