You can tell your data is not working because of your data icon on your phone or you are unable to connect to the internet or use any apps that require an intenret connection.
Note: Some Settings, Menus, or Icons may differ from that of your device depending on your software version and wireless service provider.
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Check the signal indicators at the top of the screen.
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Must show at least 2 signal bars . If fewer, your signal is too low for reliable data speeds.
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It must also show a data service icon (3G, 4G, or LTE)
Note: if you are out of your coverage area, check your data roaming is turned on.
Settings > Mobile Networks > data roaming > on -
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Check the mobile data manager
Settings > Network tab > Data Manager
Check the Limit mobile data usage which allows you to set a limit for mobile data usage on the device. Once the limit is reached, your mobile data connection is disabled and you will receive a notification.
Mobile Data Usage Graph - Use to set and monitor your data usage.
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Orange horizontal slider bar - Use this to set the usage warning level. When the device reaches this level, you will see a usage warning.
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Red horizontal slider bar - Use this to set when the mobile data connection is disabled. Limit mobile data usage option must be enabled to adjust this slider bar.
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Blue vertical slider bar - Use these to adjust the date usage range. All applications using mobile data within the given date range are displayed. This allows you to narrow down which applications used data during a given usage period.
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Power off your device and turning it back on.
Press and hold the power button until the device powers down.
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Confirm you are able to make calls.
If you are able to make calls the Sim card works fine and you are registered with your carrier.
If you are not able to make calls:
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Try a different Sim card for the same carrier (You can obtain a Sim card from a friends, family member, or co worker, or check with your local carrier store).
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Contact your carrier to ensure your plan is still active.
If your phone is unlocked, and you are using it on a different carrier, you may need to get your new carriers APN settings.
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Toggle Airplane mode On and Off .
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Settings > Network tab > Networks & Internet > Airplane mode > Off
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Drag down the notification bar, and tap airplane mode
OR
On Off -
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Confirm cellular data is on.
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Settings > Network tab > Mobile data > on
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The notification bar should show a data service icon (3G, 4G, or LTE)
If you are only experiencing issues with one specific App, in the Mobile Data menu press more > Data saver
If the data saver is on, check which aps are turned off; turn on the apps you wish to use data with, or disable the data saver.Note: Data charges may apply if you go over your plan.
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Check for carrier updates.
Settings > General Tab > Update Center > Software Update > Check for Updates
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Perform a backup and factory reset
Back up
Please check the following article on How to perform an android back up
Reset
Please check the following article on How to perform an android reset
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Check the signal indicators at the top of the screen.
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must show at least 2 signal bars . If fewer, your signal is too low for reliable data speeds.
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It must also show a data service icon (3G, 4G, or LTE)
Note: if you are out of your coverage area, check your data roaming is turned on.
Settings > Mobile Networks > data roaming > on -
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Power off your device and turning it back on.
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Confirm you are able to make calls.
If you are able to make calls the Sim card works fine and you are registered with your carrier.
If you are not able to make calls:
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Try a different Sim card for the same carrier (You can obtain a Sim card from a friends, family member, or co worker, or check with your local carrier store).
-
Contact your carrier to ensure your plan is still active.
If your phone is unlocked, and you are using it on a different carrier, you may need to get your new carriers APN settings.
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Toggle Airplane mode On and Off.
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Left Soft Key (Menu) > Settings > Phone Settings > Flight Mode > Off
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Check for carrier updates
Left Soft Key (Menu >) Settings > Software Update
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Perform a backup and factory reset
Back up
To back up your information, connect your phone to your PC and copy your files over.
Reset
Left Soft Key (Menu) > Settings > Phone Settings > Reset Settings
Master Reset: Restores the phone settings (e.g.: Audio, Display, Language, Bluetooth Settings) to default values.
Master Clear: Deletes downloaded/user created contents (e.g.:images, videos) from the phone.