I. Cannot use mobile data Internet (2G/3G/4G)
1. Open gprs/2g/3g/4g) Internet service
We have to apply to your own service provider, this is a need to pay the OH.
2. Check that mobile data is turned on
1. The top of the Samsung mobile phone is a status bar, we slide the top curtain down.
2. Then click "Move Data" to see if we are shutting down or opening a WLAN network. (because mobile phones are automatically used when WLAN is available.) )
3. Reset the Internet parameters
1. Click "Application" after entering the desktop.
2. Click "Set" to enter in the application.
3. You will see the following interface we click on "Connection" in the "more networks."
4. Then click on "Mobile network" to enter the details as shown in the picture.
5. Select a SIM card that you want to use for data access, for example, "family".
6. Then here we click on "Access Point name" as shown.
7. Now we press the "menu" button on our phone's keyboard.
8. In the pop-up menu, we click "Reset to Default" to enter.
When you are done, restart your phone.
Two. Cannot use WLAN to surf the internet
A. You cannot use WLAN networks to make sure that the WLAN on our phone is open.
B. Our WLAN password is not correct, if incorrect we can re-enter it once
C. Mobile phones can connect to the WLAN but not the Internet, this you want to see if you are using DNS settings are problematic.