I just replace the whole screen on my samsung galaxy s10 plus but to make sure the phone was working well I put the sim...

I'm asking help because I bought A Samsung galaxy s10 plus that was broken and recently I fixed it up as soon it turned on...

The front facing camera on my iPhone XR doesn't want to activate anymore after a screen replacement and it was just that

Unfortunately No I fixed it myself for a family friend I even used the original parts for the phone like the earpiece speaker and put it back into place I've checked everything and nothing appears to be broken or ripped also what peice of film do you mean because when I opened the phone I didn't find one just the usual cables connected together.