Step 1:

Remove the sim card tray.

Use a hair dryer to heat evenly along the edge of the back cover of the phone, about 2-3 minutes

Step 2:

Try to pull and open a gap between back cover and frame after heat. Insert into a guitar pick or card to cut the sticker.

Step 3:

Gently open the back cover.

Remove adhesive residue from the edges of the phone, and remove broken glass that has fallen into the phone from the back cover

Step 4:

Tear off the new back cover adhesive protective film, gently align the mobile phone and stick the back cover, and after fixing the position, gently press the fixing adhesive along the surrounding area.

Step 5:

Hold the phone tightly with a rubber band for 3 hours to allow the adhesive on the back cover to fit well.