How to log in to Qingdao Metro if you don’t need your mobile phone number?

If you no longer need to use your Qingdao Metro mobile phone number to log in to the subway system, you can try the following steps:

1. Back up relevant data: Before logging in, make sure you have backed up Any important data related to the mobile phone number, such as contacts, text messages, etc.

2. Cancel or close the account: Contact the customer service department of Qingdao Metro or the technical support of the relevant platform and inform them that you want to cancel or close the account related to the mobile phone number. They will provide further guidance and any verification information that may be required. Please note that this may result in you no longer being able to use this mobile phone number to log in to the subway system.

3. Change the login method: If you still need to use the subway system, you can try to log in using other authentication methods, such as using electronic cards, QR codes, etc.

In general, the specific operation steps may vary according to the specific design and regulations of the Qingdao subway system. It is recommended that you directly contact the relevant platform or customer service department to obtain detailed operation guidelines.