Beware, it is easy to ruin the sockets on the SE motherboard, far easier than the 5s. Be extra careful pulling these cables.

Chances are there is also water damage or some problems you can’t easily see.

This happened to me and unless you know someone who does micro soldering it is likely impossible.

Don’t ever put your fingers under the batteries as they can heat up and burn you.

Yes it can catch fire even at 0 %. I had 2 batteries burn totaling the iPhone.

This part was a very frustrating experience for me.  I thought that my replacement screen was just poor quality, as it worked when it wanted to work.  Pressing home/power repeatedly sometimes brought it back, charging to 100% also brought it back.    The actual problem was that it is very easy to get some of the gasket material caught in the connector, which I couldn’t see until I used my jeweler's loupe.  I used 91% alcohol to carefully clean all of this off until all pins were shiny, and it took about 6 tries to get it right.  However, the screen’s been running well for 2 days now.  I already bought another screen replacement which I have for a spare as it was 100% not the problem.