Using a lint-free cloth (or coffee filter) with a bit of isopropyl alcohol, clean the adhesion surfaces. Use a Q-tip to clean smaller surfaces and corners.

For delicate surfaces that might be damaged by solvents use a 50/50 mix of water and isopropyl alcohol. Don't use any scented cleaners or anything that might leave a residue.

For best results, swipe your cleaning implement in one direction, not back and forth.

This will help remove any remaining adhesive residue and prep the surface for the new adhesive.

Wait at least a minute to let the solvent evaporate after cleaning.

The next four steps are example use cases for the pre-cut adhesive card. Evaluate what will work for your repair, and continue from step seven for application and installation.