Chosen Solution

Hi guys i was changing the housing of this iphone 12 and after i finished my job, I checked to see if there were any issues. Everything working fine except the wifi, which has a very low signal. It doesnt show any of them, and to show one and connect to it I have to be as close as possible to the router. Any of you have some toughts?

Wifi was working before house swapping.

check if the wireless cables (antenae) are correctly installed