Xiaomi Mi Mix 2 Fingerprint Sensor Not Working

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Comprehensive Report of the Xiaomi Mi Mix 2

Before going on to the fingerprint sensor, one should first consider the design and characteristics of the Xiaomi Mi Mix 2. The device is made of premium materials, has bezel less display and has great specifications.

Main characteristics
Screen: 5.99 inches 1080 x 2160 pixels (18:9)
Processor: Qualcomm Snapdragon 835
Ram: 6GB / 8GB LDDR4X
Memory: 64GB / 128GB / 256GB UFS 2.1 (no expansion)
Battery: 3400 mAh
O.S: MIUI 7 based Android 7.1 (upgradable)

Design and features

The Mi Mix 2 bears a ceramic body along with a display covering the entire front, making engaging in any application on the gadget as attractive as possible. However, the most important remark is about the bottom right side of the Mi Mix 2 where there is an integrated fingerprint sensor that allows the user to unlocking device easily within seconds.

Fingerprint Sensor and Its Relevance

It is impossible to imagine today’s smartphones without fingerprint sensors and this is because it benefits the user in the following ways:

Security: Most devices with built-in fingerprint sensors will be almost impenetrable as these will be very difficult to unlock without the registered fingerprints.
Convenience: This enables the user to access the device faster especially when they are dealing with several tasks that require quick attention.

Functionality: For instance, in addition to locking and unlocking mobile devices, many mobile applications also make use of finger print sensors for purposes of enabling secure mobile payments and secure applications.

Most Fingerprint Sensor Problems

Nevertheless, users have voiced their opinion on the fingerprint senor performance issues in Mi Mix 2 despite the device being viewed favorably as good. These issues may include the following:

The sensor is unable to detect finger prints.
The sensor is unresponsive to touch.
The device is slow to respond to the unlock command.
There is unsuccessful fingerprint enrollment during the procedure of registering fingers.

Potential reasons

For effective troubleshooting, one ought to know the possible reasons responsible for the problem with fingerprint sensor functionality. The causes may include the following:

Some innovations in technology also means there will be glitches: With each update of application or operating systems, new bugs are often introduced which may hinder the working of the fingerprint sensor.
Not Safe For Work (NSFW) Hardware: An overload on the sensor system may also result in heaters turning on and damaging the sensor.
Disruptors: It could be possible that shortened moisture, oil or dirt on the sensor is the cause of the improper scanner action.
Faulty functions: Inaccurate signing up of finger prints or incorrect position of the finger among other can also impair on recognition.

Troubleshooting Steps

Should there be difficulties experienced while using the fingerprint sensor on the Mi Mix 2, the following steps may be taken in problem identification and resolution.

1. Restart the Device

Rebooting one’s device is something basic but effectual. Doing this will help eliminate any temporary problems affecting the fingerprint mechanism.

2. Clean the Fingerprint Sensor

This would be the moisture, oil or dust which hinders the sensor efficiency. Take a microfiber cloth and wipe the clean the sensor region but not to use excessive force which will only aim at removing any material in which the region is bound.

3. Check for Software Updates

Since the old versions tend to have errors and bugs in their systems, uninstalling this software will most likely solve the anomalies prompted by the fingerprint scanner. Go to Settings > About Phone > System Update and check for updates to install the updates available.

4. Re-register Your Fingerprints

If the fingerprint sensor response is still minimal, remove the fingerprints and try to register new ones. Go to Settings > Lock Screen & Password > Fingerprint Unlock, erase the fingerprints and the re-register them.

5. Try Different Fingers

On some occasions, some fingers may not get registered successfully. Consider registering alternatives or the same but from different angles fingers to enhance recognition.

6. Reset Your Configuration

In case the preceding actions do not discuss the problem, you may wish to reset your configuration. This process does not remove any data, however it does refresh the network settings, application settings, among other things. Navigate to Settings > Additional Settings > Backup & Reset > Factory Data Reset.

7. Access Safe Mode

Accessing the safe mode of the device can assist to check whether there is an interference with the fingerprint sensor from any installed third-party applications. For this, press and hold the Power button until the Power menu appears, then tap and hold the ‘power off’ option until the ‘reboot to safe mode’ dialog box appears, choose OK to reboot in safe mode. While in this mode, test the fingerprint sensor.

Hardware Problems

If the issues persist despite the soft measures employed, then it can be inferred that this is hardware related. In this case, these alternatives can be considered:

1. Check for External Damage

Look at the device and see if there are any external aspects that are damaged like scratches and cracks around the fingerprint reader. Any such defect might call for repairs from a technician.

2. Visit a Service Center

In case the troubleshooting techniques fail and the fingerprint sensor is still defective, it is prudent to reach out and seek the assistance of a qualified technician or Xiaomi service center. Such personnel will do the needful diagnosis and carry out the required corrective measures.

Customer Feedback

User experiences of the fingerprint sensor in Mi Mix 2 are different among users. Some people enjoy quick recognition and smooth performance, while other people have problems with the same features, and are angry about this. The following are some of rules found in the user comment sections:

Positive Feedback:

Primarily However, Some users cannot ignore and welcome the unlocking speed of this intuitive sensor; almost everyone agrees that it regularly unlocks the device in 1 second or less.
Easy Starting: Users generally find the fingerprint registration step simple which facilitates the adding or editing of multiple fingerprints.

Negative Feedback

Disabling Factors: Several users indicate that the fingerprint scanner has a problem on some occasions in recognizing a registered fingerprint which causes the user to try unlocking the device several times.
Software Issues: Abatement of slight disappointment amongst some users who claimed they had bugs in the software due to some of the updates as such problems were still being experienced.

Comparing with Other Devices

In order to put the fingerprints sensor performance of the Mi Mix 2 into lime light, it is worth to line it up with devices like it in that era.

Xiaomi Mi A1

The Xiaomi Mi A1 also exhibits a rear-facing fingerprint reader. Most users reported effective operation, yet some have experienced slower recognition than the Mi Mix 2 when both devices’ sensors are functioning properly.

Samsung Galaxy S8

The Samsung S8 has a front fingerprint sensor and has been met with lots of criticism regards the location and how efficient it works. While the majority of users are fans of the speed, their recognition has been an issue for others, especially because it is placed beside the camera.

Specifications and information of OnePlus 5T

The fingerprint sensor of OnePlus 5T, which is located at the rear, has received praise for its speed and accuracy. Users consider it performs flawlessly, and it can be attributed to the improvement made by OnePlus in this feature.

Conclusion

To put it concisely, Xiaomi Mi Mix 2 as a whole is still a wonderful device with aesthetic design and good specifications. Screenshots taken by the device however portray the issues on the fingerprint sensor as a reminder of the need for enhanced software structures and user training in order to get the most out of the device. For the customers who are encountering such issues, the steps for troubleshooting problems outlined below are often effective and can restore the device’s operation. In case these methods fail, it may be necessary to consult an expert for the normal functioning of the device.

The issue of the fingerprint reader for the Mi Mix 2 illustrates the concept of technology versus user experience because there is a problem even with the best gadgets. Users are however able to gain maximum utility from the Mi Mix 2 with totality of its functionalities including the fingerprint scanner even in the face of fingerprint sensor challenges.

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