ChipWhisperer Husky-Plus not detected over USB (appears stuck in bootloader)

Hello ChipWhisperer team,

We recently purchased a ChipWhisperer Husky-Plus board and are facing an issue where the device is not being detected by the host PC over USB. On power-up, the observed LED states are: ADC – red, Glitch – red, Error – red, Armed – green but very dim, Capturing – blue (dim), Status – off. The board does not enumerate as a ChipWhisperer device on the host. Based on the LED pattern and behavior, it appears the SAM3U may be stuck in bootloader mode or the application firmware is not running. I attempted the documented erase/reset procedure using the recessed switch located on the opposite side of the 20-pin connector near the USB port (pressed using a needle, as described in the Husky documentation), but the device is still not detected after reconnecting USB. Multiple USB ports and cables were also tried with the same result. Kindly advise on further recovery steps or confirm if this LED state indicates a known firmware or hardware issue.

The expected state of the LEDs when first connecting is dim, except for the green status LED which should be blinking. However once you put it into bootloader mode, the status LED will not be blinking. So, everything is normal there.

Which version of ChipWhisperer have you installed, how did you install it, and on which OS? HuskyPlus is not supported by any release prior to the latest 6.0 release.

Finally, did you purchase from us (directly from our webstore or from Mouser)? Husky being open source, there are clones.