How to unlock the hotel password charger?

The charger of the hotel is unlocked by scanning the code of the mobile phone. According to the relevant information, check that the hotel charger is at the front desk, scan the code, and then you can rent a machine to charge, which is generally the case, as long as it works normally. He is a charging treasure enjoyed by * * *. Just scan it, activate his customer identity, and then you can use the charging.