Step 01 of 04
Clean the panel
Wipe the whole screen with the alcohol pad, then dry it with the microfibre cloth. Hold the phone up to a window and look across the glass: any speck you can see is a bubble you will not be able to press out. Lift it with a dust-removal sticker — dab, do not drag.
Tip: Work indoors with the fan off. Moving air is what carries dust back onto a clean panel.