Solution 1: Please start the disk utility and format (“delete”) your USB flash drive with the exFAT format.
Attention: Formatting your USB flash drive will automatically delete everything on it. Please save your data on another storage medium before formatting the stick. Afterwards, please activate your license with the same serial number (again). If the activation is not successful please contact our Support Team.
Solution 2: If the problem still exists please try to use another USB flash drive. We recommend using USB 3.0 Hardware.
MAXQDA cannot read the hardware ID of the USB flash drive.