Fix Scratches on Your Ceramic Finger Print Sensor




Introduction: Fix Scratches on Your Ceramic Finger Print Sensor

Hello World.

After using my Oneplus 3 phone for like a year and 1/2 , i started noticing a layer of scratch on my finger print sensor. The sensitivity of the sensor had come down like around 20% from the initial purchase, its just that at times you have to try twice to unlock your phone. I Tried cleaning with damp cloth and nothing worked. Also i noticed few blogs to clean scratched glasses using toothpaste. So i geared up few thing lying around and tried fixing the scratch and voila it worked flawlessly. while in middle i thought of making this task as an instructable and here we are...

My first Instructable :)

Step 1: Things Needed and Process

so things needed should be fairly simple.

- An Ear bud

- A cutter

- A toy motor and powered with a battery

- tooth paste (i used sensodyne )

- your victim . (scratched finger print sensor)

cut the earbud into half and try 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 using a clean cloth. At one point of time you will start realizing that the glossy finish of the finger print will start shining out.

Step 2: Old Phone Turned New

i got my new phone back after 1.5 years. The finger Print sensor is back as brand new. And i feel that the sensitivity has increased a bit and nothing worst with the working of it. like it if this helped.

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    4 Discussions


    1 year ago

    It's work man... :)


    2 years ago

    I wouldn't have thought toothpaste could be suitable polishing compound, especially as ceramic is a hard material. My phone has a different kind of fingerprint sensor, so I won't use this soo, but I'll keep it in mind!

    Thanks for sharing your experience! (and risking a broken phone in the process) :D


    2 years ago

    Huh, that's pretty neat! I didn't know you could fix those like that :)