Once your Ubigi eSIM profile installed, you have to create your account:
– from the Ubigi application: you can download it from the Google Play:
– from the website Ubigi.me: open a web page and go to Ubigi.me on your device.
First, make sure that you are connected to the network with your Ubigi eSIM (turn off Wi-Fi).
Then, launch the application or go to Ubigi.me to get the account creation page and fill in the required fields and click “Create account”.
You can find all those instructions here