Why does my smartphone vibrate after replacing the display?

Question

Iron

The service center replaced the module (display), after which the vibration on the smartphone changed: it became too loud, some kind of rattling. The phone was not dropped, it was not in the water. What could have happened, is it dangerous, can it be fixed?

Answer 1

It's a common thing when they changed the display, unscrewed the vibration module and screwed it back badly. Take it back to service.