chris

should be fine, just make sure it doesn't go on the wireless charge pad.

plastic credit/store card and abit of force.

do you bend the flex`s out straight when refurbishing? this used to cause me issues as they are so fragile, best to keep them formed with the bend whilst refurbing.

sounds like the battery may not be connected, have you every had a repair or bought it used?

ive had this before, managed to bend the bottom of the bracket up 90deg and get the button out the screen and back into new screen successfully without having to remove the screw. risky but doable.

The cheaper ones don't have the small parts fitted(power button flex etc..) so you have to transfer everything over where as the expensive ones have everything already fitted so you basicly just need to swap over the logic board and camera. If you havnt done any repair before then I would suggest you get someone to do it for you as an iPhone x is rather expensive, however if you feel confident then go for it, just watch a tear down video and take your time.

does it work on wifi? are the time and date correct?Tried hanging in new charge port?

disconnect everything except chargeport and see if it will flash without errors, then if it goes through ok start connecting each component one at a time until you find the culprit.

try putting a slight bend in the metal bracket that the homebutton presses against so it pushes the homebutton out alittle.

this maybe fixable by cleaning the sim reader internally with Alchol, certainly don't write the phone off yet without getting it looked at, we repair these all the time with nothing more than a clean. open the phone up and where the sim sits you will see six contacts remove the sim tray first then try lifting these up SLIGHTLY with some bent tweezers(if you lift them up too far they will get caught on the sim holder, also there is a micro switch (just behind the sim contacts) that will open when sim tray is inserted, if this is corroded then it wont work so clean all this area with alchol.