If you had no issues provisioning the device with Etcher, and it all went like in the link you send us, it could be a connectivity problem, try using an Ethernet cable.
If on the other hand you are not sure is the provisioning was successful, check that:
- the compute module is properly inserted.
- If you are on windows you need the usbboot drivers to expose the eMMC installed
- try another USB cable
- errors during flashing in balenaEtcher can also be seen in the console (pressing Ctrl + Shift + I)
If that is also not the case, can you let us know which Fin version you have and what do the LEDs do when/after flashing?
I hope any of these tips help