Data connection is inconsistent after replacing a cracked screen

Hello,

After replacing my screen, my antenna for data is not working very well indoors and is generally not as consistent. I get the No Service - Emergency Calls Only mode often when I'm indoors or if I move around. I've done the following things to try and fix it:

* hard reset of my phone

* taken it into a cell phone repair place

• starting up in recovery mode
• restarting my phone
• turning the data on and off

The data works, it's just not as strong/consistent as before the screen was replaced. The repair place said that they couldn't find anything wrong with what they performed and didn't see any connection issues when looking at it again. Wifi seems to work ok. Thanks,

Matt