activation

thanks for the information.

Basically, there is no way to do this on my own and without help from T-mobile rep. I remember being able to do that with Sprint.

Teyang wrote:

how do you activate a N200 5G on an existing line with a broken Pixel 3 (eSim)?

You purchase a new pSIM and have Customer Care or an employee at a T-Mobile Store activate the pSIM for you with the eSIM number, which will disable the eSIM.

how do you activate a N200 5G on an existing line with a broken Pixel 3 (eSim)?

Unless you are still a Sprint customer.  Phones don’t require activation.  As mentioned, remove the SIM from your old device and put that SIM in your new device.  

Do you have a current activated sim if so move the sim from the old phone to the new one.