u need a null modem cable and download the file from www.globo-electronic.de if it does not work and power supply voltages are good then u have to unsolder the flash memory from board and reprogram it with the downloaded file from www.globo-electronic.de on ur eprom programmer
well, then u can call it the old school way, it still works. secondly, in order to use jtag and Jkeys software u have to know the receivers IRD number. do u know whats the IRD for Digital 600? if u know how to get IRD for any kind of receiver id like to hear that myself. your help would be invaluable!!
To desolder/solder a flash chip properly you would need a hot air desoldering station, not every hobbyist has one. Then you would need a programmer that handles that chip. I would only attempt that if I had a 1meg flash and planned to upgrade to a 2meg flash chip. Jkeys was originally written for north american echostar receivers, not fta receivers. I use either skymax1.3 or jtag_up for fta receivers that are jtaggable. No need to play with .def files and you don't have to ground pin 115 on the sti5518 to erase/write.They are finicky about the operating system, I use win98 but others claim they work with winxp. I assume the 600 has a 1meg flash, which the previous programs handle. You would also need the jtag size firmware to install, preferrably rigged for the provider you want to watch.
I have seen bad power supplies also, if that is the problem. I know hevet and microyal had power supplies with the wrong voltage rating capacitors in two spots, 16v instead of 35v. I would check the power supply for pregnant caps, they will have bloated tops,if the receiver just died by itself. I believe there are schematics around for the hevet power supply.