I've got a Zephyr with Blackaddr's Aud_Clamp via Boxxdr's tut over an LPT connection. Initially I started out with the old school wiring and XBR from the Instructables JTAG tut. I also added an RJ-45 coupler so I didn't have to keep taking apart the 360 if it didn't work. The coupler was added before the flash. Figured everything was fine so I put everything back together and I know the wires didn't get loose as I added a small dab of glue to secure the wires to the board. Tested the board once again before heading out for the night and Xell would boot and the dash was good. I came home like 4 hours later to start it up and there was an E79. I started the process all over again and kept getting the same result. I finally added the Aud_Clamp thinking it would fix it and patched the SMC with various tools different times and tried to boot Freeboot hoping things would change. When I used Easy Freeboot I would get absolutely no power. When I used Coolshrimps JTAG tool with Aud_Clamp it would get the 3RLoD (bad flash) Once in a while Xell would boot and other times it wouldn't at all. When I used Freeboot Toolbox the most recent time it said my CPU key doesn't match kv file however when I open up the exact same NAND with 360 Flash Tool and my CPU key it seems fine. I am at a complete loss right now. No clue where to go next. Any advice will be greatly appreciated.
JTAG Endless Issues
- Thread starter Johnny8675309
- Start date
Teajunkie
VIP Member
Martin C
VIP Member
I stopped here.
I don't know how many times I need to say this on the forums, but I'll keep doing it nonetheless.
You WILL keep having problems when using LPT as it provides unreliable reads and writes.
Take for example:
You need 5 dumps to get two matching (and therefore verified - if you call it that).
Now writing the data back, how do you know you've written it back correctly? It took you 5 reads, there's no telling how many writes and more importantly, which one is going to be good.
The NAND-X is inexpensive for what it is and even if you didn't want to buy one, there are plenty of other USB SPI solutions out there.
Save yourself (and everyone else) the pain of trying to make something work which was initially designed as a proof of concept.