Reference this link https://www.kali.org/docs/nethunter/...-ticwatch-pro/

Step. 5 Install Nethunter.

"adb sideload" Nethunter image

Where is image file?

Near the top is download link and it includes a TickWatch_Pro_Nethunter_files.zip, but this isn't an image. Any suggestions on where image is located or how to load?