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[doveman007]

I see that most tutorials say that you have to put the probe on R707 but the fourth picture down on this page http://forums.xbox-scene.com/index.php?showtopic=668247 seems to show pin 1 (TX) on the power connector being used instead, which would seem easier as it doesn't involve taking the drive apart.

Is this possible or is that picture misleading? I understand that with later drives, traces need to be cut which obviously requires the backplate removing, but I'm just asking about the 74850c.

[turny]

QUOTE(doveman007 @ Jul 3 2010, 01:59 PM)

I see that most tutorials say that you have to put the probe on R707 but the fourth picture down on this page http://forums.xbox-scene.com/index.php?showtopic=668247 seems to show pin 1 (TX) on the power connector being used instead, which would seem easier as it doesn't involve taking the drive apart.

Is this possible or is that picture misleading? I understand that with later drives, traces need to be cut which obviously requires the backplate removing, but I'm just asking about the 74850c.

look at the pcb pictures, there is no connection between the via where you probe and the power connector as the r707 resistor isnt fitted .To make this connection available at the power plug, the pads where the resistor was supposed to be fitted need to be bridged with solder,the probe removes the need for this.
So either way you have to remove the lid on the drive.

[ImRickJamesB1tch]

If you turned that exact same drive over you will see the bottom cover undernearth the drive has been removed...Read the jungleflasher tutorial since the method for the 74850c drives has not changed:

JungleFlasher Tutorial

CODE

http://www.megaupload.com/?d=X0I9TGOZ

[doveman007]

Thanks for explaining guys. I'll just suck it up and do it with the probe then (IMG:style_emoticons/default/smile.gif)

[OggyUK]

You can remove the Pin1 on the J1D1  Power connect and use it as a probe,but not probe pin 1

[doveman007]

Sorry, can I just ask another question?

I understand that bridging the R707 points will make pin1 usable as the probe point, but I've seen posts suggesting that doing this (maybe also doing something with R708) removes the need for the probe, which I don't understand, particularly as the power lead doesn't even have pins 1 or 2 present.

Were they perhaps talking about using an Executor, Extractor or similar kit, which maybe comes with a power lead which does have these pins and via this connects R707 to the relevant point on the serial connector?

[OggyUK]

If you solder R707, you dont need to probe at all.

R708 isnt needed.

You still need an RS232 to TTL level shifter (Xtractor, CK3 etc)

These (commercial) ones come with a 12 wired power cable for this purpose.

[Tander_ZA]

QUOTE(OggyUK @ Jul 7 2010, 09:27 PM)

If you solder R707, you dont need to probe at all.

I'm sorry to hi-jack this thread - but could you explain to me how this is possible?

I have a Lite-On (74850c) drive I would like to flash, without cutting traces - I don't need the original firmware as I won't be using XBL - Just my backup games, that's all. I just need the drive key. (IMG:style_emoticons/default/smile.gif)

I was going to buy a probe - but if I can save myself the bucks and do it another way...why not?

This post has been edited by Tander_ZA: Jul 9 2010, 07:59 AM

[OggyUK]

You *never* needed the probe, it just makes life alot easier.

They key to extracting the drive key, is using an rs232 to ttl, like, a ck3, xtractor, whatever.

The commecial products, ck3 & xtractor have addons, probes and spears, where you simply probe a VIA (little round hole in a circuit board) which jumps the data back to the power connector - and subsequently, into the essential part the rs232 ttl.

If, you solder the "broken" trace, bridge it, whatever (at point R07) you are just completing the circuit so it naturally goes to the point the probe jumps it toagain, back to the essential part the rs232 ttl.

In short, if you can solder, buy your CK3/Xtractor etc

Solder / Bridge R707

Run DVDKey

[Tander_ZA]

Ah fair enough. I will just make a cable if possible.

Thanks for the reply!

[doveman007]

QUOTE(OggyUK @ Jul 7 2010, 08:27 PM)

If you solder R707, you dont need to probe at all.

R708 isnt needed.

You still need an RS232 to TTL level shifter (Xtractor, CK3 etc)

These (commercial) ones come with a 12 wired power cable for this purpose.

Cheers for the clarification.

I'm going to knock up a cheap shifter myself, so I'll just stick a wire in pin 1 after I've soldered R707 then.