Mobile phone, Samsung GTi858 has traffic, why can't it be turned on?

According to your description, I suggest you refer to the following:

1. The top curtain movement data is turned on.

2. Ask the operator whether the data traffic service is temporarily closed.

3. If conditions permit, replace other SIM cards for testing.

4. Settings-More Networks-Mobile Networks-Access Point Name-Menu Key-Reset to Default Settings

5. Try turning the machine on and off again.

6. Back up mobile phone data (phone book, SMS, pictures, etc.). ) and restore the phone to the factory settings.

If the fault still exists, it is recommended that you send your mobile phone to the nearest Samsung service center for testing and maintenance.

For specific inquiries about the service center, please visit.

Welcome to Samsung service to make an appointment:

. Samsung . com/support