There was an error in the latest driver build - was attempting to pass WHQL and instead broke everything. In mean-time you can downgrade drivers using following procedure:
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Run a command prompt as admin:
SET devmgr_show_nonpresent_devices=1
devmgmt.msc -
Select “Show Hidden Devices” from one of the top menus
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Find all ChipWhisperer devices under the “libusb-win32” section of device manager. Uninstall them.
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Run the command at command prompt “pnputil -e” . Look for all hits of NewAE Technology Inc (i.e., remember name of oem24.inf)
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Run command “pnputil -d oemXX.inf” for each hit (there may only be one).
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Download & unzip drivers from github.com/newaetech/chipwhispe … 4.0.1alpha
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Plug CW-Lite in. On driver install, tell it to use local resource and point to that folder you unzipped.
The slightly crazy instructions are needed to force a “downgrade” of driver version number. Once a fixed version is build (working on now) it will all be better…