Also, since every s6 repair starts with “remove the back glass” it should be much more widely stated: Removing the back glass will damage it! At the very least, your entry point is likely to chip some paint off near the edge. Sliding even a thin plastic wedge will do this. The paint separates easily from the glass - either due to aging or the heat you just applied! Unless you have the right heating equipment with temp control and know exactly what you are doing - and even then I doubt it will be perfect. The videos don’t show up the small chips. You could live with the damage, if its minor, but your phone won’t be perfect . In my case the pain came off in great sheets, so I scraped it all off and had a transparent back! Just take the hit and get a new back glass and glue stencil along with your replacement parts. Same applies to the paint on the edges of the front (LCD) panel - and there the solution of getting a new one is not an option (unless its broken).
CAUTION: Don’t do this repair unless you really can’t use the phone. Removing the display to replace the charger port is tantamount to madness . The display very likely to get damaged. I did this all very carefully and came out with half a dead digitizer (touch screen) . You can easily destroy the display, and the LED sensor backlights are delicate to place. You’ll need to buy a new front glue film stencil because you aren’t replacing with a new screen. I would much rather have lived with the charging problem than with a dead screen. A huge problem with the above method is guaranteeing you are separating the right layer - When I inserted the pick at the first point, it came through underneath the black insulation film stuck to the screen. https://youtu.be/Ghh_CQnh_yk tells you how to avoid this. Many other videos such as https://www.youtube.com/watch?v=OnQFtcTj... show you can try re-soldering the USB port without messing with the screen.