I love the Mount Doom link for “more heat". How high does your heat gun go up to? I’d be willing to test my gun at 2k Fahrenheit on a device just for teardown purposes though.

I did not when doing this job. The only part that I found had some adhesive was the cellular antenna cable. Perhaps some heat in some cases is necessary, but go easy on it.

The connectors are in different places, plus the 5C does not have a connector for Touch ID. I would say no.