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Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
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Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Thu Aug 24, 2006 9:53 am Subject: Need assistance with X31 (Victor, what do you think?) |
I assume, if I just go buy a new motherboard, my problems go away??? |
Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
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Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Thu Aug 24, 2006 9:52 am Subject: Need assistance with X31 (Victor, what do you think?) |
I actually tried this on THREE different PCs! Ugh... Same results on all three...
I did notice there was a daughter card that had the 1394 port and the IR port/leds. Is the security chip on ... |
Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
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Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Thu Aug 24, 2006 8:36 am Subject: Need assistance with X31 (Victor, what do you think?) |
I forgot to mention that on my board there is an extra chip next to the ATMEL. In the photo of the X31 board above, the chip is right above the ATMEL chip and is about the same size.
Is this the " ... |
Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
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Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Thu Aug 24, 2006 1:00 am Subject: Need assistance with X31 (Victor, what do you think?) |
More info:
ran voltage tests with multimeter...
getting 11.1v from the COM port (this should be enough?)
Getting 3.1v from the SDA & SCL leads (from the eeprom).
I'm getting 3.56v comi ... |
Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
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Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Thu Aug 24, 2006 12:50 am Subject: Need assistance with X31 (Victor, what do you think?) |
I wasn't able to take a pic of my ATMEL, so I marked up the one I found on this site.... I just wanted to verify that my pin selection was correct. I assumed the white dot represented pin1, so I mar ... |
Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
|
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Thu Aug 24, 2006 12:22 am Subject: Need assistance with X31 (Victor, what do you think?) |
Another note... I get a "BAD CRC error: using default values" and a "Sytem has been tampered with" error right before the SVP password screen comes up. Is this something unusual for the X31? Is the ... |
Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
|
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Wed Aug 23, 2006 3:33 pm Subject: Need assistance with X31 (Victor, what do you think?) |
Thanks for adding the notes to the picture... all your guesses are correct! :00)
The diodes are 5.1v zeners, the resistors are 2.2k ohm 1/4 watt,
On the X31, the ATMEL chip is an 8-pin variety ... |
Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
|
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Wed Aug 23, 2006 1:02 pm Subject: Here's the pic... |
http://members.dslextreme.com/users/tustinrounders/images/simple.JPG |
Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
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Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Wed Aug 23, 2006 12:57 pm Subject: Built simple interface... is it right? |
Victor, I built a simple interface on a breadboard, but I' not sure if it is right. I am posting this picture... let me know. The leads going up go to the COM port, and the three leads down are GRD, ... |
Topic: Where can I buy a eeprom reader? |
venturelive
Replies: 1
Views: 8185
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Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Tue Aug 22, 2006 10:43 am Subject: Where can I buy a eeprom reader? |
I'm not an electronics guru but I'd like to try a PW recovery. Does anyone know where I can buy one of these i2c eeprom reader devices I need to get the password? Please let me know if anyone has an ... |
Topic: Need assistance with X31 (Victor, what do you think?) |
venturelive
Replies: 12
Views: 30708
|
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Tue Aug 22, 2006 10:30 am Subject: Need assistance with X31 (Victor, what do you think?) |
I have an X31, and was wondering if there was anyone who has had success resetting a BIOS password that can help me locally. I live in Orange County, CA. If you are nearby and willing to help, pleas ... |
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