Step 1: Things Needed and Process

– An Ear bud
– A cutter
– A toy motor and powered with A battery
– tooth paste
– your victim . (scratched finger print sensor)
cut the earbud into half and check out to snub it on the shaft of the toy motor. Damp the earbud and take a mustard size of toothpaste and apply it on the scratched parts of the finger print sensor.
Now power the motor with battery and buff out the toothpaste. keep repeating and wipe employing a clean cloth. At one point of your time you’ll start realizing that the glossy finish of the finger print will start shining out.
Step 2: Old Phone Turned New
