SMC-JTAG points for USB SPI JTAG interface

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SMC-JTAG points for USB SPI JTAG interface

mirage

Hi, I've bought your USB SPI JTAG kit recently and have completed the JTAG process successfully to the point of reading NAND, following your detailed tutorial. I have a Falcon (v3.0) CB 5761. Next steps will be writing XELL to NAND and soldering the SMC-JTAG connection.
Now, I've read elsewhere that there are alternate JTAG points for SMC to replace the DB1F1 and ROL points, in particular using the OPEN_TRAY and AUD_CLAMP points. I want to use HDMI to connect to my TV.
Hence, I'm wondering if I should use the alternate points? Must I write XELL first or can I can flash straight to FreeBoot 0.032 (9199 dashboard)? Your advice is much needed. Thanks ;D

Tutoromix

Nandpro is mainly for used for flashing from Xell->Xellous or XBR
But use Jtag Tool or iHc NandTool for flashing Xell->freeBoot since you won't have to grab the required files from Xbins - http://team-xecuter.com/forums/showthread.php?t=54178
Xell is a requirement before flashing to XBR/freeBoot. And the SMC hack also has to be done before you can boot into the flashed images or run any Jtag program on the console.
Instructions taken from here - http://forums.xbox-scene.com/index.php?showtopic=712871&st=0&p=4685910&#entry4685910

It's really quite simple.
1. Do your JTAG wiring and connect the Xbox to your PC via USB or LPT.
2. Select LPT or USB from the 'device' dropdown, depending on the method you are using.
3. Select your console version from the 'console type' dropdown.
4. Click 'read nand' and save it to your desktop. You may want to dump it a couple of times and compare the dumps to be sure you have got a good dump.
5. Click 'write xell', then after it has written Xell connect the Xbox to your TV and switch the Xbox on by pressing the eject button. It will boot into xell and you can get your CPU key.
6. Paste your CPU key into the 'CPU Key' box.
7. Click 'create .bin', then browse to the dump you did in step 4.
8. Save freeBOOT.bin to desktop.
9. Once it has created freeBOOT.bin click 'write .bin' and browse to 'freeBOOT.bin' on your desktop.
10. It will write freeBOOT to your NAND, and you should be good to go smile.gif

The SMC hack can be done before, during, or after flashing/jtagging - http://www.free60.org/File:ZFOJ_Jtag_free60.jpg | http://www.free60.org/SMC_Hack#Required_Soldering

mirage

Hi Tutoromix,
Thanks for the tips

For the SMC-JTAG points, my concerns are whether HDMI will be affected using the DB1F1 (and it's alternatives) and whether ROL will cause any instability as mentioned in some forums.
Anyway, I will try out the JTAG hack as instructed first. Wish me luck!

mirage

quick question : I received resistors in my usb spi bundle with the solderless add-on. what ohm are those? thanks

Tutoromix

Those are actually 1N4148 switching diodes for the SMC-JTAG part of the hack. Make sure you do not follow the Xenon method here - http://www.tiaowiki.com/w/How_to_JTAG_XBOX_360#Soldering_the_SMC-JTAG_connection Free60 has up-to-date methods.
Ohms can be measured using a multimeter...

mirage

Apart from diodes, some resistors are included. Anyway, I'll measure using a multimeter, thanks!