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The Galaxy A12 is a low-end slate Android smartphone released by Samsung in November 2020 as a successor to the Samsung Galaxy A11. Identifiable by model number SM-A125 (followed by version/carrier-specific character.

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Why fingerprint not working

how to fix fingerprint not working

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how to fix this problem

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My fingerprint is not working

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@mpho46253 have you checked and tried what was suggested in the original answer?

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@kelvinleorecide first you need to make sure that it is enabled in the settings menu. Go to Biometric, then Fingerprints and setup your prints. If the reader is not even being seen, then it is possible that you have a failed reader. Of course, you can also try to start your phone in safe mode and see if that changed anything. Ihat would rule out that 3rd part software messes with your sensor. You could also try a factory reset. Just make sure that you have backed up all of your files and that you know/have all of your passwords and access codes.

To replace the sensor and since iFixit does not yet have a guide for this, use something like this video as your guide.

Now, if that does not repair your fingerprint reader, you will have to do a deeper check. Here is the Samsung flowchart for the Fingerprint Sensor not working

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Use the search function of your PDF reader to locate the components to be checked, from this document A125 Component Layout

While you work on your phone, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same problem as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!

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Kelvin Leo Recide さん、ありがとうございました!
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