HTC U 1 1 mobile phone is lost, so I can't contact you after turning it off. What should I do?

1. Call the mobile phone provider and provide your mobile phone serial number, and they will help you block your mobile phone, so that even if the thief changes the SIM card, it still cannot be used.

3. Mobile phone anti-theft tracking. If you want to know the contact information of the other party, you must meet the following conditions: the mobile phone has anti-theft tracking function,

3. Turn on the mobile phone anti-theft tracking function (some mobile phones use this function to compensate).

The other party inserts a new SIM card into your stolen mobile phone to run.

5. The other party is not engaged in mobile phones. After the above conditions are met, the stolen mobile phone will send the mobile phone number currently used by the mobile phone to the number you set, and then you can query the sim user information. The principle of other mobile phone manufacturers is similar.