I used the iOpener as suggested by breadandbits for 15 minutes then wrapped the watch with 7 rubber bands tightly for 29 hours. After two hours the screen started to come loose again.

iFixit is going to send another gasket. I’m curious, can Hans-Hermann Gessler please update your comment as to what clamp you used and how long you allowed it set. iFixit won’t share the manufacturers curing time for the adhesive.

Thank you.

Have a very good light source. The screen blocks a good amount of light, and light is what you to line these two connectors up. Had my wife hold a flashlight ( or torch for those in the UK) for me.