Cell phones can make phone calls and send text messages, but they can't surf the Internet. Why?

If the phone can't surf the Internet normally, please check the following:

1. If you don't restart your phone after upgrading to the 4G package, you won't be able to use the Internet function normally.

2. Confirm whether there is a network. It is recommended to use it where the signal is strong;

3. Check whether there is any phone bill in the account. If the balance is insufficient, it needs to be recharged before it can be used;

4, can be turned off for 3-5 minutes, restart the phone and try again;

5. Check whether the USIM card is inserted. If it's plugged in and still doesn't work, it's recommended to go to the business hall to check whether the USIM card is faulty or change the card for testing.

6. If the traffic reaches the peak in that month, the network will automatically shut down. It is recommended to pay attention to SMS reminders or inquire about package product descriptions.