i bought a mobile from other countries htc one when i am opening hotspot its showing verizon lte

[AC Question]

I have 4g lte sim but it's not getting to 4g it has many problems
For many questions it's showing verizon 4g lte sim not detected

 

[B. Diddy]

Welcome to Android Central! Which country are you in, and which carrier are you currently using? Which HTC One do you have? There are many different variants and generations.

It sounds like your phone is a Verizon-specific variant. Verizon phones often don't work well in other countries, because the bands they support are more specific for the US.