1. Restart the equipment: You can directly pull out and reinsert the flow card, or you can shut down and restart the equipment, thus solving the downtime problem.
2. Contact the operator: If restarting the equipment can't solve the problem, you can provide identity information through the operator's customer service phone or go to the offline business hall to request the resumption of the flow card service.
3. Check the account balance: ensure that the account balance is sufficient before the flow card can work normally. If the account balance is insufficient, it needs to be recharged in time.