Jtag For HF8900

Hello.I need program/shematic to jtag my ferguson hf8900, because i send wrong software and reciver every time is restarting.Also need flash dump for h.w.1.0.0.,loader1.13.10x in advance

10Xfor answers, byt I try every writen there -still no result.Inside in Ferguson has jtag. I dumping many other recivers whith st55xx, alixxxx, nec ......, have 2-3 models jtag hardware, but not for sti7100 - HF8800/8900, Kathrein and many others.I still wait for help to reanimate two HF 8900.