Chosen Solution

I recently bought and installed the Samsung Galaxy s21 charge port from this site because the port was loose. It works great now! The only thing is, my mobile data signal is horrible when I’m in any kind of building now and I’ve never had that issue. I’m just trying to see if I did something wrong or if I missed a step when installing the new part.

Hi @austinbray91 Check if the antennas are still connected properly. See Steps.28 & 29 (or 33 & 34) of the ifixit Samsung Galaxy S21 Motherboard Replacement guide, for their location.