Content

• Steps
• Part 1 of 2: Checking Service Connection
• Part 2 of 2: Checking the Settings

4G mobile communication is becoming the new generally accepted standard, but at the time of the release of the Samsung Galaxy S3, it was just beginning to spread. As a result, some S3 devices may have difficulty connecting to 4G networks. You need to have a SIM card to connect to the LTE network and a tariff plan that supports work with 4G networks. Sometimes the ability to use the 4G network may just be disabled in the settings of your S3 smartphone.

Steps

Part 1 of 2: Checking Service Connection

1. 1 Make sure you are in a 4G coverage area. The service area of ​​the 4G network covers new territories every day, but in some regions this service is still not available to users. If your S3 needs to connect to a 4G network, but it doesn't, then you are out of coverage.
   • In almost all cases, your smartphone will automatically switch to a 4G signal when available.
   • 4G signal reception is often degraded indoors.
2. 2 Check your S3 model and carrier. Not all S3 models can connect to 4G network. Early S3 devices from T-Mobile (SGH-T999), which were released before the launch of 4G LTE, cannot connect to the 4G LTE network, but all other S3 phones should be able to do so.
3. 3 Check your data plan. 4G service is provided to subscribers exclusively for an additional fee, otherwise you will not have access to this network. Also, your S3 may need a new SIM card if you change your tariff plan to another that supports 4G service.
   • You cannot use a SIM card from an operator that is not the supplier of your S3 model, unless it has been unlocked. For example, you can use a MegaFon SIM card in a Verizon S3 if your phone has been unlocked to work in other networks.
   • If this is your first time setting up your S3, and even with a new SIM card, you may need to activate 4G LTE service with your cellular provider, for which you will need to contact the operator's technical support service.

Part 2 of 2: Checking the Settings

1. 1 Open the Settings app. Your device should automatically connect to 4G networks when in coverage, but you can double-check its settings to be sure.
   • Please note that the process below is not available for Verizon S3 phones. In this case, your device will automatically connect to the network when you are in the coverage area of ​​the Yota Networks LTE network, and you will not be able to change this setting. If you are unable to connect to the Yota Networks LTE network when you are in its coverage area, then you need to contact Yota customer support.
2. 2 Click on "More..." or "More networks." You will find this item in the Wireless & networks section of the Settings app.
3. 3 Press "Mobile network.’ The settings for connecting to your mobile network are displayed.
4. 4 Click on "Network settings.’ The various networks that your S3 can connect to will be displayed.
5. 5 Select "LTE / CDMA," "LTE / CDMA / EVDO" or "LTE auto.’ Any of these options will allow you to connect to your carrier's LTE network.
   • If you do not see any of these items (only those related to GSM are displayed), then your S3 does not have the ability to connect to 4G networks.