Recover data from Lenovo Thinkpad X1 Carbon 6th Generation w/ USB Logic Analyzer

[keeney123]

Re: Recover data from Lenovo Thinkpad X1 Carbon 6th Generation w/ USB Logic Analyzer

Understand that one can run a legacy bios system on a windows 10 computer if the bios which the board manufacturer makes allows it. It is not automatic to have UEFI on Windows 8 and higher. Many older computers that the board system qualifies to be upgraded to Windows 10 from Windows 7 can run in only legacy bios. Or they may have the ability to run in UEFI. And some systems can run on either. It will load the drivers for UEFI if supported and if not they will run the Legacy drivers. Just saying that a Windows 8 was replaced by UEFI is misleading. I bought a Window 8 computer new, and know the difficulties to the OS and the UEFI limitations.
Also, understand that this Computer is listed with both Window 7 and Windows 8 OS

That is the second generation, and I could not find the 6 generation if it is capable of running Windows 7 and what the manufacturer allows in the Bios.

[keeney123]

Re: Recover data from Lenovo Thinkpad X1 Carbon 6th Generation w/ USB Logic Analyzer

Hi there, no worries:

1. Yes

2. Sure, here ya go https://cdn.badcaps-static.com/pdfs/...6707b85307.pdf and https://www.digikey.co.uk/en/product...8JVSIQ/5803943

3. Used this analyzer https://www.ebay.co.uk/itm/113701218925,
"Specifications:
Sampling Rate Up To: 24 MHz
Logic: 5V voltage, received 5.25 V
Standard CMOS logic threshold 0.8V low level. 2.0Vlogic high.
Input impedance of approximately 1m ohm or more
Material: Plastic + Circuit Board
Color: As the picture shown
Quantity: 1 Set"

alongside soic8 clip kit here: https://www.amazon.co.uk/EEPROM-Circ.../dp/B08P7GDZJ1.

Plugged in the logic analyzer and used the saleae logic software. Logic Analyzer was recognized on computer as an original Logic model, so wasn't able to adjust voltages or deselect channels. Installed the Bitlocker github extension and selected SPI section and made sure that the channels were aligned with what I had plugged them in as. Also selected "enable line is active high" Then I flipped the switch on the SPI entry I had made and the program said it would use "looping".

Connected clip onto the chip making sure orientation of clip was correct. Occasionally I would get a full signal saying error on a couple of channels prior to turning on the laptop on so I just kept reseating the clip until all channel lines were flat. Finally, pressed the start button in software and then turned on laptop and it would do that chime and black screen.

4. Oh, oof more stuff to get. Is it likely I'll get key from this as I have read that I need to go 4 times the signal strength or something like that and this only goes up to like 24mhz?

So, what is the speed of the bios chip or the U49. What signal are you using to trigger the logic analyzer to start recording? It has been since 1983 since I use a logic analyzer so please bear with me on new analyzers. We had 40 pin analyzers with also 6 qualifying triggers of starting and stopping. One has address strobe, data strobe and chip selects. The analyzer I used one wheeled in on a cart. The system cost our company $40,000 at the time. The software engineers taught us how to use it.