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  Topic: Simple vs Driven
wolfman

Replies: 6
Views: 8320

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Thu Apr 20, 2006 7:20 am   Subject: Simple vs Driven
Last question for the Wolfman, on your pictures I can see that you are using Minigrabbers. I bought some, but they are way too big to hang on these little chip legs (I have the 8 pins 24rf08) Did you ...
  Topic: [Practice] Making it work.
wolfman

Replies: 37
Views: 167181

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Mon Apr 10, 2006 4:59 am   Subject: links fixed; cap to connect to security chip
The links are fixed.

There is indeed an error in the diodes; Victor will post an explanation; I'll fix the drawings.

About a cap--3M makes testing clips for many IC chips that do just what bassc ...
  Topic: [Practice] Making it work.
wolfman

Replies: 37
Views: 167181

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Fri Apr 07, 2006 4:29 pm   Subject: thanks for the tips
Thanks for the tip on the diodes; I'll check it out. All I know is the the board as pictured worked just fine on my T22. I'll confirm with Victor and revise as needed and put up new diagrams/pics if r ...
  Topic: pinout request
wolfman

Replies: 23
Views: 38707

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Fri Jan 06, 2006 3:51 am   Subject: breadboard help
Small wires could be a problem; one must also use solid wire only with breadboards. This educational site: http://www.kpsec.freeuk.com/breadb.htm has a nice tutorial on working with breadboards.

I ...
  Topic: pinout request
wolfman

Replies: 23
Views: 38707

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Thu Jan 05, 2006 4:10 pm   Subject: Congratulations
Congratulations on sticking it out and recovering your password!

Thanks for sharing the details with the rest of us; never know who's lurking and will learn from your efforts.

-Oldguy
  Topic: Unlocking SPV psw Thinkpad A30
wolfman

Replies: 2
Views: 8565

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Tue Jan 03, 2006 4:05 pm   Subject: a combination approach
While I wouldn't disagree with Victor, you might try a combination--
have a pro solder the wires to your security chip and build the breadboard yourself.

This is the approach I took and it worked ...
  Topic: pinout request
wolfman

Replies: 23
Views: 38707

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Tue Jan 03, 2006 3:46 pm   Subject: pinout request
Too bad you're abandoning the driven circuit, I had great success with it. See my notes under the sticky subject "[Practice] Making a breadboard out of driven circuit diagram" and feel free to email m ...
  Topic: pinout request
wolfman

Replies: 23
Views: 38707

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Mon Dec 19, 2005 6:45 pm   Subject: pinout request
Easy DB9 connections

Only other thing I did to make it easy was used a pre-built modem cable that had molded pin #'s on the exposed face (needed a magnifier, but they were there). I cut off the oth ...
  Topic: pinout request
wolfman

Replies: 23
Views: 38707

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Mon Dec 19, 2005 6:33 pm   Subject: pinout request
The 5v on the schematic is nominal, Victor's design uses 3 1.5 AA batteries and so the actual is 4.5 V. If you have a 5V source you could use that instead of the batteries, .5 volt doesn't make a diff ...
  Topic: [Practice] Making it work.
wolfman

Replies: 37
Views: 167181

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Sat Dec 10, 2005 8:09 pm   Subject: [Practice] Making it work.
An old guy's interpretation of Victor's driven circuit diagram into a working breadboard.



I used a breadboard for ease of wiring and figuring the circuit out. It took a few tries; been over fou ...
  Topic: capacitors used for driven model-polarized or not?
wolfman

Replies: 5
Views: 19321

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Fri Dec 02, 2005 5:30 am   Subject: when to power the driven circuit?
thanks!

I am pretty stubborn, so I'll persist until I get the driven circuit to work. I haven't had time to get back to it, and don't have a digital camera here; will borrow one and send pics.

Q ...
  Topic: capacitors used for driven model-polarized or not?
wolfman

Replies: 5
Views: 19321

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Tue Nov 29, 2005 1:12 am   Subject: re: capacitors used for driven model-polarized or not?
Thanks!

So, if the bin file read by the simple circuit gives nonsense where the password should be, should I expect any different from the driven circuit? This happens with IBMpass lite and 2.0, or ...
  Topic: capacitors used for driven model-polarized or not?
wolfman

Replies: 5
Views: 19321

PostForum: IBM/Lenovo ThinkPad Password Help Center (EN)   Posted: Tue Nov 29, 2005 12:19 am   Subject: capacitors used for driven model-polarized or not?
Are the capacitors used in the driven circuit polarized? Your circuit diagram does not indicate this, but other references to the Maxim232A IC do show polarized caps.

I ask because I'm having trou ...
 
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