DM800HD error01 NO CA Found help?

[abeltcb]

when I flash my 800HD clone, It stuck at flashing using web browser.I make a mistake, I switch it off. When I switch it on again, this message "Error01 NO CA Found" . I try 2nd patch file and other method, the set did not response.using the patched dreamup, it cannot detect my box. I force flash but its said file too big.
I know, everybody will said to try this , try that. But I try all method that I can find.
Do you think I shall do Jtag to revive the box?
how to do jtag?

[owenb]

na get the patched dreamup mate to load the boot loader then when it comes up with the remote ip on the dm8-- display enter that and flash through browser mate

[abeltcb]

na get the patched dreamup mate to load the boot loader then when it comes up with the remote ip on the dm8-- display enter that and flash through browser mate

no response from the set. No IP show.

[owenb]

Oh dear don't doubt good ur rs232 lead second set to right port?

[abeltcb]

Oh dear don't doubt good ur rs232 lead second set to right port?

I have use this cable and PC and I can flash on other set. And Just for your info. DM800HD use only 3 wire (2,3,5) for RS232.