Carefully lift the back cover upwards whilst pressing down the fingerprint reader with a finger.

The fingerprint reader should separate from the back cover during this procedure. In case the adhesive is too strong, you can reapply a heated iOpener to the fingerprint reader for one to two minutes to further loosen its adhesive.

Remove the back cover.

Secure a new back cover with pre-cut adhesive or double-sided adhesive tape. Apply the new adhesive into the back cover and not onto the frame of the phone assembly. After installing the back cover, apply strong, steady pressure to your phone for several minutes to help the adhesive form a good bond—a stack of heavy books works well.