You can download both versions of u-center directly from the official u-blox website .
Best for u-blox M8, M9, F9, and legacy products. u-center free download
The next-generation tool designed specifically for the latest u-blox M10, F10, and X20 platforms. You can download both versions of u-center directly
Choosing the right version depends on your hardware and specific project needs. u-center - u-blox u-center free download
u-center Free Download: How to Install & Use the Official GNSS Software