Wash and dry your hands
Clean the screen thoroughly with a microfiber cloth
Use a dust sticker or tape to remove any dust particles
Lift the screen protector slightly from the nearest edge
Reapply it slowly from one side to the other
Push bubbles outward with a credit card or squeegee wrapped in a soft cloth
Press from the center toward the edges
Use a hair dryer on low heat for a few seconds if the protector is flexible
Let the protector sit for a few hours
Replace the screen protector if the bubbles are caused by dust or damage that cannot be removed