Exactly what I did as well, the gently warming made the adhesive removal work like a charm. The heat as well help to lift the screen easily, no need for the prying tools for me to open te phone.
For the adhesive removal just pull it slowly to the bottom of the phone and keep in under tension.
On reassembly, turn on the phone after getting all connectors back in place to verify all is working fine before putting all screws back in their spot.
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