Emir BardakçıMost Xiaomi users are facing an annoying problem that’s interrupting their everyday smartphone usage. Tempered glass screen protectors are preventing under-screen fingerprint sensors in several models of Xiaomi phones from working. The growing commonality of the malfunctioning issue is rendering users unable to add new fingerprints or unlock their phones with the fingerprint sensor, leading to immense inconvenience to all who depend only on this method of authentication.
The commonness of the issue among several models of Xiaomi phones that contain the under-screen fingerprint technology indicates an issue of compatibility with the sophisticated biometric security features provided by Xiaomi and third-party screen protection accessories. As always, while Xiaomi is pushing the limits with innovative smartphone technology, users must be keenly aware of possible problems that accessories may create with compatibility, which may end up affecting the device functionality.
Understanding the Problem
The fingerprint sensor malfunction is not unique to select individuals. Various posts throughout Reddit and other tech communities indicate that this is hitting quite many owners of Xiaomi devices. Some have found that applying very hard pressure to the screen with specific screen protectors does work after a while, but this solution is far from perfect for everyday usage.
Under-screen fingerprint sensors rely on ultrasound or light technology to scan your personal fingerprint pattern. When you place a tempered glass screen protector, it can disturb this high-end reading technology if:
- The glass is too thick. The protector is not tailored particularly for under-screen sensor devices
- The adhesive leaves an air space or gap between the screen and the protector
- The glass material causes the sensor to malfunction while reading the fingerprint
Top Workarounds for Xiaomi Users
The issue is not with your Xiaomi’s sensor but with the compatibility of the screen protector with the sensor. These are the best fixes:
Step 1: Select Compatible Tempered Glass
If you favor the premium look and durability of tempered glass, consider looking for models that are dedicated to under-screen fingerprint sensors. These are normally equipped with:
- Slim design
- Special cutouts in the sensor region
- Increased transparency around the fingerprint reading area
It’s advisable to check customer reviews prior to making purchases to ensure that the protector is compatible with your particular Xiaomi model. Despite claims of manufacturers about compatibility, actual performance may differ.
2. Use High-Quality Film Protectors
For the best possible fingerprint sensor experience, high-quality plastic film protectors provide the optimal balance of function and protection. Like the pre-installed protectors that ship with many factory-fresh Xiaomis, they:
- Offer sufficient scratch protection
- Avoid touching the fingerprint sensor
- Retain screen sensitivity and responsiveness
Although they do not provide the same level of impact resistance as tempered glass, high-end film protectors can offer an almost identical touch experience while ensuring your biometric security features function seamlessly.
Fingerprint sensor users can improve their device’s performance with the latest system update available at HyperOSUpdates.com or with our MemeOS Enhancer app from the Play Store. The MemeOS app offers further advantages such as hidden features of Xiaomi, updates to the system applications, and enhanced biometric settings.
Source: MundoXiaomi, Reddit
