In fact, problems like this are fixed here, and the client may also have problems. They are maintaining them there. In view of this customer problem, call the customer service to see when they can get it.

The tag failure displayed on the ETC indicates that the ETC electronic tag is not activated, and the ETC equipment needs to be taken to the ETC handling outlets or ETC service outlets for inspection. If the fault is not caused by human factors, it can only be used by activating ETC twice.