How to change the name of your iPhone's personal hotspot to make it easier to connect your computer

To change the hotspot network name on your iPhone, you'll need to change the name of the iPhone itself. Here's how to do it.
Android Authority

How to change the name and password on a T-Mobile router

T-Mobile’s routers are designed for ease of setup and use. You just plug it in somewhere near a window, download the T-Mobile Internet app to your Android or iOS ...