The system will lock for a period of time if the number of incorrect unlocking attempts reaches the limit within a short period. After the lockout period ends, you can try again.

The lock is in silent mode. You can connect the lock to the LNDU App and adjust the volume settings.

First, check if the door lock's power supply is functioning properly. Second, make sure you have pressed the SET button before searching for the device. Third, ensure that your phone's Bluetooth is turned on and functioning normally, and that the app has been granted permission to use Bluetooth.

This may be due to a damaged fingerprint, excessive moisture, or dirt on your finger. Try cleaning your finger and retrying. You can also register multiple fingerprint credentials for the same finger to improve recognition success.

Press and hold the SET button on the back panel of the lock until you hear a voice prompt. Keep holding the SET button, and after a "ding" sound, the lock will reset to factory settings.

Please note that the built-in GPS only shows the coordinates of your location and cannot be used as GPS navigation. NO internet connection needed for the GPS feature to work. When the camera receives a signal, the GPS feature will work automatically. Dash Cam GPS does NOT provide driving directions. It is only meant to record the driving speed, your driving route with your video. Almost all the dash cameras like this. The built in GPS in dash cams are to record your driving route data, so you can prove the exact location of an accident or an event that occurred at specific date and time and location.

There may be two reasons why the memory card cannot be taken out of the card slot: 

1. The memory card is inserted upside down, causing the card slot to deform; 

2. The tenon next to the memory card is deformed, causing the card to die and pull out not come out. 

 You can try the following two methods: 

1. The SD insert is spring loaded, if you slightly poke it with your fingernail, it should pop out easily;

2. Use tweezers to hold the card and push it gently and repeatedly to pull it out.

1. push the edge of the card a bit harder with the edge of a credit card, then the SD card will "clicked" into place. When the card is in place, it can be removed easily by pushing it again, which releases the card.

 2. If it still won't hold the SD card, could you kindly provide us with a photo of the SD card slot? If the problem can not be solved, we'll send you a replacement ASAP.

 3. You should insert the card with the golden contacts facing the LCD display side of the dash cam.