Hand ID recognition accuracy may decrease in the following cases. To increase its accuracy, check the following before using the device.
- Make sure that the ToF sensor and IR illuminator are not blocked by a sticker or any other foreign substances while using the Hand ID feature.
- When water, dust or other foreign substance is on the ToF sensor, IR illuminator or your hand, the Hand ID recognition may not work. Clean and dry the sensor and your hand before having the hand recognized.
- If you bend your hand, Hand ID may not be recognized. Make sure to open your hand wide while registering and recognizing Hand ID.
- Make sure that the device is parallel with your hand while registering or recognizing Hand ID. If you tilt the device or your hand, registering or recognizing Hand ID may not work properly.
- Make sure that your device is placed on a flat surface or placed on a stable holder.
- While using the Hand ID feature, keep your palm at a distance of 4 inches from the device.
- ToF sensor
- Front camera
- Proximity/Ambient light sensor
- IR illuminator