In device manager the cb2 is being recognized as a USB mass storage device and in the rkdevtool program it is recognizing it as an MSC so I am unable to write to it. When I plug it in by usb it shows ...

Download the balenaEtcher software from balena.io/etcher, install, and run it. Insert the MicroSD card via a card reader. Select your downloaded image. Select the MicroSD card and click "Flash" (WRITE ...