QUOTE(thethinker360 @ Mar 26 2010, 03:06 PM)

especially on the Cygnos V2 you do NOT need it.
the cygnos guys had warned a couple of times that the other Jtag methods were "unclean" and the voltages aplied via diodes or resistors were not clean enough and mitgh cause damage. the Cygnos method is 100% clean as the voltages are managed by the cygnos firmware / microcontroler! so a cygnos has this "jtag Saver" built in anyway
Thanks, It was something like this I thought that the cygnos had and why I asked so I didn't break something or put in alot of work into it without any positive changes to my 360.
It was the reason I used Cygnos in the first place so I didn't need to touch the original Kernell. It is mutch easyer to flash the original NAND then to install a Cygnos Version 2.
It's a shame the Revision F Cygnos V2 for 256/512 Jasper don't have it's own memory and you are forced to flash the original NAND. I presume it's quite safe but I don't really understand what you are paying for in Revision F since you still have to flash the original NAND. So in a way Revision F is just a glorified USB NAND Flasher that you can only use with one 360. All other USB NAND flashers you are able to reuse when you are done.
I didn't hear anything about any price cuts and I find it rather expensiv if the price is the same for Revision F as it was for Revision E. Especially With Executers new NAND X witch is cheaper and mutch easyer to reuse.
I did use a Cygnos V2 on a Jasper that had an early Kernell but was impossible to JTAG. I tried to desolder the Cygnos but I gave up when I found out I was breaking both the Cygnos and the 360 with the solder equipment I used. You need some really good equipment to desolder a Cygnos V2. So that is pretty why they aren't reusable. The Revision F have even more of those hard to desolder points. And you are quite scrued if you didn't use cables for those points from the start....