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Log in| Search found 5 matches |
| Author | Message |
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 Topic: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
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| DarkSamus9000 Replies: 8 Views: 44087 |
 Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Wed Aug 27, 2025 2:12 pm Subject: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
| OMG you're right, that's it! NCD!
I re-assembled the laptop enough to power it on & check, and sure enough that's it! I will come back from work today & clear the password with the hard ... |
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| Topic: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
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| DarkSamus9000 Replies: 8 Views: 44087 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Tue Aug 26, 2025 2:03 pm Subject: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
| Well, for now I am still stubbornly trying to bitbang this chip myself. The CH341A is cheap enough, but I want to see if I can use the tools at my disposal for now.
How will I know when I have a su ... |
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| Topic: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
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| DarkSamus9000 Replies: 8 Views: 44087 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Sun Aug 17, 2025 7:19 am Subject: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
| Hello Victor,
Thanks a lot for your response. I previously tried using ponyprog on my raspberry pi 4, but it could not detect any chip with the probe function; so I pulled out an old thinkpad with ... |
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| Topic: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
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| DarkSamus9000 Replies: 8 Views: 44087 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Sun Aug 10, 2025 8:41 pm Subject: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
| I realized I could try reading the chip as 128x8 instead of 64x16. So, per the datasheet (https://www.alldatasheet.com/datasheet-pdf/pdf/23849/STMICROELECTRONICS/ST93C46A.html), I connected the ORG pi ... | |
| Topic: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
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| DarkSamus9000 Replies: 8 Views: 44087 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Sun Aug 10, 2025 6:30 pm Subject: Interpreting 93C46 EEPROM dump of Thinkpad 760EL |
| Greetings everybody,
After a long journey, I believe I have finally succeeded in reading the EEPROM off of my Thinkpad 760EL. The chip is a 93C46, and I read it using an arduino and the circuit des ... |
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