Apple's mobile phone traffic is useless What's going on here?

1, it is possible that the mobile phone may have no phone bill, and the traffic of Apple's mobile phone cannot be opened because of downtime. It is also possible that the monthly traffic package runs out and reaches the upper limit, and the mobile phone will automatically turn off the normal traffic Internet access function. The reasons why Apple's mobile phone has traffic but can't be used are: the network signal is not good, the flight mode is turned on, and the mobile phone is broken.

2. The contact between the metal of the mobile phone and the contact of the SIM card is insufficient, so you can try inserting the SIM card again. If the mobile phone or SIM card is damaged, you can change the machine to check to see if the mobile phone or SIM card is faulty.

3. Apple's mobile phone traffic may not be used, which may be caused by turning on the flight mode or the application software not turning on the cellular network.

4, that is, the SIM card has been used for a long time, worn out and does not match. You can surf the internet with traffic by changing your SIM card. The fourth step, mobile phone traffic refers to the traffic data generated by mobile phone surfing the Internet. When using a mobile phone to open software or operate the Internet, it will exchange data with the server. Mobile phone traffic refers to the size of this data.

5. The traffic can't be used. It may be that the data is not turned on, the flight mode is turned on, and the mobile phone is stuck or the SIM card is worn.