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What does it mean when the ETC device shows 'Label Invalid'?

1 Answers

KinsleyDella

07/30/25 1:25am

ETC displays 'Label Invalid' due to unauthorized removal or relocation of the OBU device, or the ETC electronic tag falling off or becoming loose. It needs to be reinstalled and reactivated at the original processing point or any highway ETC service center. The ETC installation process 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; a red light will briefly turn on, and the OLED screen will display 'Label Invalid' or 'Please Insert Card,' indicating the device is functioning normally. Clean the front windshield, ensuring the glass surface is smooth, clean, and dry. Then peel off the protective film on the back of the OBU adhesive and stick it to the installation position. Press firmly for 2-3 minutes to remove air bubbles. Insert the ETC card with the front side facing the driver and the back side facing the windshield, ensuring the chip is inserted into the OBU device. ETC activation method: Insert and remove the ETC card twice in succession until the electronic tag screen displays 'Bluetooth On.' If 'Label Invalid' appears when inserting and removing the card twice without the electronic tag attached, this is normal and does not affect activation. Alternatively, press the button on the top of the electronic tag to enable Bluetooth directly. Turn on the phone's Bluetooth and open the corresponding mobile app (usually with a download QR code on the electronic tag), then enter the device activation interface. Click 'Device Connection' and wait patiently for the 'Connection Successful' prompt. Once connected, upload a photo of the vehicle's front to complete activation.

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