Love fixing things. Thanks to iFixit, I've fixed multiple devices.
Review steps 24-29 prior to doing this. Step 27 shows removing ambient sensor. It is attached….barely…to the rest of this assembly. I thought I was being overly cautions, and it still broke. Don’t be afraid to use heat. Do not force. Any resistance, do not force it.. Heat it up and then try. Other than that, sound and camera works fine, and it appears that FaceID works. Not my phone, so I can’t test that part without unlocking customer’s phone. No error messages appeared, so Im assuming all is good. With the touch home button on older models, if touch wouldn’t work, you’d receive a message as soon as you booted the phone up. OK.. That’s enough. Just be careful over the next 5 steps..
I find it easier to use the heat on the glass/LCD side rather than directly on the battery itself. Less likely to have a problem with the battery exploding as the author mentioned.
in addition to the above, you will have to remove the tape over one of the 15 screws.
A reverse order would be great as noted above. Otherwise, i have it together and powered on and it works. I have books sitting on i pad hoping adhesive will adhere. I may use the iOpener on it to warm up adhesive and let it cool again. Thank you..