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Log in| Search found 4 matches |
| Author | Message |
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 Topic: EEProm and Circuit Data Bus Error |
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| coolnyan Replies: 5 Views: 15947 |
 Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Mon Jul 23, 2007 1:21 pm Subject: EEProm and Circuit Data Bus Error |
| Richk and Victor,
You guys right! I soldered the wrong CHIP! I don't know there are more than one ATMEL chips on the motherboard. I connect to the correct ATMEL chip and I am able to see the pas ... |
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| Topic: EEProm and Circuit Data Bus Error |
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| coolnyan Replies: 5 Views: 15947 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Mon Jul 23, 2007 3:50 am Subject: EEProm and Circuit Data Bus Error |
| I check the voltage on SDA and SCL in respect to ground with voltmeter and the value looks correct:
SDA (1) = 4.9V SDA (0) = -0.6V SCL (1) = 5.1V SCL (0) = -0.6V It looks like the EEPROM reader ... |
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| Topic: EEProm and Circuit Data Bus Error |
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| coolnyan Replies: 5 Views: 15947 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Mon Jul 23, 2007 2:01 am Subject: EEProm and Circuit Data Bus Error |
| I check Victor's instruction on post before this:
1. connect the interface to COM1 and let the SDA and SCL wires on the air; 2. Execute the itester.exe and click <connect>. The timer will ... |
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| Topic: EEProm and Circuit Data Bus Error |
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| coolnyan Replies: 5 Views: 15947 |
Forum: IBM/Lenovo ThinkPad Password Help Center (EN) Posted: Mon Jul 23, 2007 1:01 am Subject: EEProm and Circuit Data Bus Error |
| Hi There,
I have IBM Thinkpad R32 and I am trying to unlock BIOS password. The ATMEL chip is 93C46. I follow diagram instruction but when I launch R24RF08 command, I got error message: "C ... |
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