90
• Make sure that charging is carried out under normal conditions (0°C (32°F) to 40°C
(104°F)).
• When abroad, check that the voltage input is compatible.
• Check that the charging port is secured or it’s not damaged.
My tablet can't connect to a network or "No service" is displayed
• Try connecting to the network by moving to another physical location.
• Verify the network coverage with your carrier in your current area.
• Check with your carrier that your SIM card is valid.
• Make sure your device’s setting is not in airplane mode.
• If you are away from your carrier’s network, you may need to enable roaming in the
device’s settings to connect to other network. Roaming charges may apply.
My tablet can't connect to the internet
• Make sure that Cellular Data internet service is available in your wireless service
plan.
• Check your device's settings. Make sure Cellular Data is enabled or Wi-Fi
connected.
• Make sure that you are in a place with network coverage for cellular data or Wi-Fi
internet connection.
• Try connecting at a later time or another location.
Invalid SIM card
• Make sure that the SIM card has been correctly inserted (see "Inserting or removing
the SIM card").
• Make sure that the chip on your SIM card is not damaged.
• Make sure that the service of your SIM card matches the network you’re on.
My tablet can't make outgoing calls
• Make sure that you have dialed a valid number and have touched Call on your
tablet.
• For international calls, check the country and area codes.
• Make sure that your device is connected to a network, and the network is not
overloaded or unavailable.
• Check your subscription status with your carrier.
• Make sure that you have not barred outgoing calls.
• Make sure that your tablet is not in airplane mode.
My tablet can't receive incoming calls
• Make sure that your device is switched on and connected to a network. Check for
overloaded or unavailable network.
