HTC One Signal Problem

[AC Question]

My HTC one display has gone, i went to the repair shop and replaced the new display, i have problem with signal , it is dropping frequently this is happening when it was broken. what could be the reason

 

[B. Diddy]

Welcome to Android Central! Maybe the people who replaced the display inadvertently caused some other problem, like with the antenna. Have you spoken to the repair shop about this?