How to Apply New Back Glass Adhesive in Your Google Pixel 9 - Google Pixel 9

Be extremely cautious when removing old back glass adhesive near the battery and fragile components.

Use a spudger to carefully scrape away all old adhesive from the perimeter of the frame.
Roll the adhesive onto itself as you remove it to prevent residue.

Cleaning is essential: use isopropyl alcohol and a microfiber cloth to thoroughly wipe down the frame.

Skipping this step if installing a new back glass cover.

Remove remaining back glass adhesive and its residue from the underside using a scraper.
Thoroughly clean the area to prevent any leftover adhesive from interfering with future installations.

Remove the larger clear liner from the back glass adhesive.

If the adhesive is placed incorrectly, repositioning it will be impossible.

Use the flat end of a spudger to firmly press around the adhesive perimeter and ensure it is securely attached to the frame.

Grasp the top right corner of the large blue liner using tweezers or your fingers.

Remove the liner by lifting it away from the frame.
If adhesive begins to separate with the liner, gently press it back onto the frame and use the flat end of a spudger to secure it.

Press the flat end of a spudger firmly against the adhesive's perimeter to secure it to the frame.

Press the flash unit firmly onto the midframe, ensuring the square protrusion aligns with its recess.

Verify adhesive stickiness, if not sticky, use thin double-sided tape strips to secure flash unit.

Remove blue liners by pulling tabs on right edge.

Remove any liners from the underside of the back glass, near the camera cutout area.

The flash unit has two circular cutouts on its top edge, which match up with metal posts underneath the back glass.
When installing the back glass, ensure that these metal posts fit into their corresponding cutouts.

Align the back glass with the frame. Press it firmly into position.

Press down evenly around the back glass to secure with adhesive.

For first-time power on after repair: ensure phone is flat, and nothing touches the screen.
No objects (fingers, liners, protectors, cases) should be in contact with the screen.