I have a Particle cloud account. I connect the device via USB and go to the page to register the device. After a while, a prompt appears asking for permission to connect the device (it's from the browser side if I understand). I do and after that nothing happens. The blue LED on the Boron board is blinking rapidly. I tried to check what the problem is by following the instructions on the website: https://docs.particle.io/troubleshooting/guides/connectivity-troubleshooting/.
It turns out that the device cannot register to the 4G network. Is that correct?
Is this the reason why I can't register my device in the cloud? Or are these two unrelated problems?
I see a free SIM slot on the device. Does the delivery have to include a SIM? Or is an e-sim being used?