Chosen Solution

I have an iPhone X, space grey, 256gb. I’m sure some others have the same problem I am having with replacing the rear glass. That being said, I know the easier way to fix this is swapping the full housing. I am looking into doing the project and found a site where they sell the full housing and everything is already mounted up. I guess it’s a used iPhone X and maybe the motherboard was messed up. If I buy this, are only my motherboard and Face ID sensors needed to be swapped over or are there other parts that will need to be swapped as well?

I guess that depends on what’s included in the replacement housing. Post a link to the housing and I can give you more info. Keep in mind though that the antennas are built into the housing itself so if this is an aftermarket housing, it may suffer from poorer reception. Check out reviews of the product or vendor and due a bit of due diligence. If they don’t specifically say it is original, then it probably isn’t.