How To -- Check anti-theft alarm or controller when has a problem

What To Do If Can't Turn On Display:
1. Firstly, make sure that the steps to use the remote control is correct:
Click unlock button on the keyfob, then click twice lightning button
2. Then confirm whether the main line plug at the end of the 5 lines of the instrument is in good contact and whether the pins inside the connector are crooked.
3. Check whether the USB charging port under the display can be charged. If it can't be set, the display is broken. need to change a new display.
4. it is necessary to check whether the controller is normal. The guide video mainly detects whether there is a problem with the alarm and the instrument.

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