How to attach ETC to the windshield?

[DiSerenity]

ETC installation on the windshield is as follows: Upon receiving the device, first check if the ETC card and electronic tag (OBU) are damaged. Press the anti-tamper button on the back of the OBU, and the red light will briefly illuminate. The OLED screen will display 'Sign Invalid' or 'Please Insert Card,' indicating the device is functioning properly. Clean the front windshield to ensure the surface is smooth, clean, and dry. Then peel off the adhesive backing of the OBU and attach it to the installation location. Press firmly for 2-3 minutes to remove any air bubbles. Insert the ETC card with the front facing the driver and the back facing the windshield, ensuring the chip is inserted into the OBU device. ETC installation location: For small vehicles like cars and minivans, the ETC card and OBU device should be installed in the upper middle section of the front windshield. For large vehicles like trucks and buses, the installation location is in the lower middle section. ETC installation requirements: height should be no less than 1.2 meters and no higher than 2.5 meters; the installation angle N should be between 30º and 90º (the angle between the electronic tag surface and the horizontal plane).