iPhone 5s Battery
If you only purpose is remove the heatsink, the microphone cable is Okay be leave here.
Actually, I didnt remove the crashed front panel(the old one) as this guide. The edge of front panel didnt stick so much with the cover case, so I use force to tear off the crumbled edge. Be prepared for the "dust of glass", it will really hurt your body, if you plan to do as my way.
Additionally, there is another difficulty part of me. When I stick the new panel on. There is always some small dust between the screen and the front panel.