Hi, · Yes, you can replace screen without losing FaceID as long as your FaceID flex not damaged is still capable of functioning. · All you need to do is transfer the earpiece flex assembly from your old screen to the new screen carefully. · If you have taken care and the flex or chips controlling FaceID are not compromised from water ingress you shouldn’t have a problem. · You can find the guide here: · iPhone XS Max Earpiece Speaker and Front Sensor Assembly Replacement · Hope this helps

Your tabs are stuck in the phone, you have only lift up setje front of the screen and the metal frame of the screen is still inside the iPhone. You first got to get them out before you can instal your new screen.

You replaced the entire front display module? Maybe try making sure the ribbon connector is fully plugged in

This is not actually a chip at all, it’s a soldered on shield! It’s there to protect a litany of components, not just a singular chip. This picture of the back of the OEM XS and XS Max displays shows more clearly what I mean. Shields off on the XS Max display on the left, and shields on on the regular XS, on the right. https://guide-images.cdn.ifixit.com/igi/... · I’m not sure what these specific components on the display are responsible for, but they could be missing on the replacement one for any number of reasons. Replacement displays come in several “flavors.” They could be a refurbished OEM display, which generally means an original Apple display which has new protective glass applied to replace a cracked/ damaged one (or other sorts of component level repairs done to an original Apple display). Or they could be developed by a third party company as an alternative to Apple’s own displays. · This sounds more likely in your case if this is missing from the new display, since the end goal of third party displays is mostly to make them functional (and to a lesser degree, depending on who is buying them, to make them look authentic), and this could mean they use different layouts, components, etc…. to produce a screen that will work in whatever phone it is being designed for, rather than making a display that is visually identical to an Apple one. · If there are components here, it could also be that the shield was removed to replace a component and just never put back. Or the manufacturer of the display didn’t put a shield over them to begin with. These shields generally provide 2 fold protection. 1 from interference and 2 from damage. So including them is a sign of higher quality. But is probably not “necessary” for function.

The only issue you should encounter will be that you will lose the True Tone function on the screen. There is a way to copy what's called the MtSN number from the original screen to a replacement, but it requires a device programmer, something like the JC V1SE or the QianLi iCopy. Those start at about $85 USD, so it's entirely up to you whether that one function is worth the purchase for what will most likely be a one time use. · You might check around and see if there are any local repair shops that would do the programming for you for a reasonable cost, but otherwise you'll have to decide how important that feature is to you. Other than the MtSN number, there are no other parts pairing issues with swapping screens on an iPhone XS Max.

I am looking at... https://www.ifixit.com/Guide/iPhone+XS+Screen+Replacement/113862 Make sure you are putting the right amount of downward force on the driver. You might need to warm up the screw head a bit to weaken lock-tite. I'm not sure if they would include that, and I'm not sure how you would go about this, that close to the battery. This will take more research. You could try to put a small circle of paper over the screw head and then use your driver to help take up some of the tolerance. Can you take the other 4 screws out of that bracket with the current bit condition? Don't worry too much about the bit, iFixIt should replace it after you are done if you require another bit. You just have to be able to get it all back together.

I've never bought parts from iFixit, but I've heard mixed reviews about the quality of their products, and they generally seem overpriced imo. I've not done an X, but I replaced a friend's XR screen with an OLED from etechparts.com about a year ago and she hasn't had any issues with it. If I remember right it was about $50, I would assume an X screen would be similar price.