Typo: "Work you".

On some models, there is another cable, which crosses the battery (which accounts for the odd diagonal shape of the upper-left graphite film), which also needs to be removed.

Use the Torx T3...

(slight reminder that it's the same bit as used already)

This seems contradictory: the step basically says to heat the graphite film through the battery (from below) instead of heating the graphite film itself, and then says "don't heat the battery directly". Sounds like a thermometer test is needed.

The SIM is probably no more sensitive than the rest of the phone.

After reassembly, the fingerprint sensor appears to be a common issue with new screens:

* Go to https://pixelrepair.withgoogle.com/udfps on a computer.

* If using Windows, click the help link to install the USB software. After installing, restart the computer and return to https://pixelrepair.withgoogle.com/udfps.

* Follow the steps given to install the fingerprint calibration software.

* Restart the phone.

Before reassembly, clean around the edge of where the screen was, to remove any debris that may have been captured.

Use the Torx T3...

(slight reminder that it's the same bit as used already)

The film delaminates easily, so be careful.

If you are using an iFixit replacement battery, it comes with replacement graphite film for the bottom and left.