Can ETC be used immediately after installation?

[LePiper]

ETC needs to be activated after installation before it can be used. ETC activation method: Insert and remove the ETC card twice in succession until the electronic tag screen displays "Bluetooth is on". If "Tag invalid" appears when inserting and removing twice without the electronic tag attached, this is normal and does not affect activation. Alternatively, you can directly press the button on top of the electronic tag to enable Bluetooth. Turn on the mobile phone's Bluetooth, open the corresponding mobile APP (usually there is a download QR code on the electronic tag), and enter the device activation interface. Click on device connection and wait patiently for the "Connection successful" prompt. After successful connection, upload a photo of the vehicle's front to complete activation. ETC installation positions: For small vehicles such as cars and minivans, the ETC card and OBU device are installed in the upper middle part of the front windshield. For large vehicles such as trucks and buses, the installation position is in the middle lower part. ETC installation position requirements: The height should not be less than 1.2 meters or more than 2.5 meters; the installation angle N should be between 30º and 90º (the angle between the surface of the electronic tag and the horizontal plane).