That is where the heatgun or hairdryer comes into play! You want to have either a heatgun or hairdryer, and set it on low setting and medium heat and keep an inch away from display so you don't destroy LCD or any components leading the tablet to be useless. And apply until you believe the screen or glue are warming up and loosening. Be very careful with this process or take to someone if you don't feel comfortable doing so which thousands of people do! No one blames them! But doing so warms up the glue/adhesive so it can come apart and you can continue doing what is necessary for the repair. Hope this helps!