If the glass remains stuck, re-heat and slice the adhesive repeatedly as needed.

Lift the rear glass carefully, making sure it's fully separated from any adhesive.

Remove the rear glass.

During reassembly, pause here to replace the adhesive on the rear glass using a precut adhesive card or high-strength double-sided adhesive tape, such as Tesa 61395.

After closing your device back up during reassembly, stack something heavy, like a textbook or two, on top of the device for 30-60 minutes. This ensures a strong adhesive bond.