Poor 4g after battery replacement

[amtrak23]

Hi. I swapped out my battery for a Onite replacement yesterday and my 4g reception is almost non existent. Today I put the old battery back in...same result. Then I swapped both of the antennas pieces with parts from my old maxx. Still poor 4g.

I had to have damaged something related to the antenna but I don't see anything that looks suspect. Any ideas on f what I can look for?

 

[1901Madison]

How did you swap the battery on the Maxx when it has a sealed battery?

 

[amtrak23]

I bought a replacement battery and followed the enclosed directions to open the case up and replace the old battery.