Use a pair of tweezers to remove the front-facing camera.

If the front-facing camera doesn't easily lift out of the frame, apply a few more drops of isopropyl alcohol and wait for the adhesive to weaken. Repeat this process as necessary.

You can also use the pointed end of a spudger to scrape away some of the adhesive to make the front-facing camera easier to lift out. Remove loose bits of adhesive after this process.

If there's any alcohol solution remaining in the phone, carefully wipe it off or allow it to air dry before installing your new front-facing camera.

During reassembly, follow this guide if you are using a pre-cut adhesive card to secure the new front-facing camera to the frame.