Xbox 360 Jasper R-JTAG in 2016?

Glad it worked out well for you. The CR4XL is a nice install to do. Nice soldering. As you have shown, QSB are not essential for CR4XL. They are very useful when doing the original Rjtag mod as that required all 8 POST points soldered and those things are super weak solder points.

I just use a couple of diodes and wires for the jtag part. Some prefer the Boxxdr method but I find it a bit overkill.

 

Thanks!

Agreed. Not needing any QSB's was a good take away. It is appealing to just stock up on glitch chips, with no fear of worrying about the right combo of QSB's for whatever scenario. A bit more work, and you need to know how.

I suspect that is true about BoXXDr's method over just using a couple diodes. I can't be sure, but I don't think it participates in any way with the glitching. Either way, I went with it.

 

Looks good to me! Great job on STBY_CLK, that pad is so easy to lift.

 

FWIW, here is some seriously hardcore (not really) science...

I don't know if saying "0" glitches makes sense. Maybe I should count the power button as 1. I started counting after the first longer duration of the green LED, and audible fluctuation of the fan.

Jasper 512MB

Glitches (0 ohm)
10 (cold)
0
2
1
0
14
0
11
2
0
-------------------------------------
Glitches (10 ohm)
2
3
0
0
3
1
1
0
0
0
3 (pulled power for 30 sec)
3
-------------------------------------
Glitches (100 ohm)
0
0
0
2
0
2
3
1
2
8
8
1
4 (pulled power for 30 sec)

This is just sharing info. Not too worried about over perfecting. Didn't try any capacitors. Just played with the resistor jumpers. *shrug*

 

I noticed that the pad is the same as the neighboring resistor's closest side. I would think that it's easier to attach to the resistor and not very likely to lift. I wonder if anyone ever pointed that out before.

 

The transistors are the proper way to do it. You are working with 2 different voltages.

It's nothing to do with the glitching at all, it's about being electrically correct. And not putting higher voltages in places they shouldn't be. For the sake of a couple of cheap transistors and resistors - you should do it properly.

 

It's also pretty easy to knock the resistor off if you leave your iron on it too long, and annoying to then reattach.

There is an alternate point on the bottom of the board that I normally use instead