AT&T TCL 30Z - Page 48

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• Make sure your SIM card is inserted properly.
• Import all contacts stored in SIM card to device.
I am unable to use the features described in the manual
• Check with your carrier to make sure that your subscription
includes this service.
I am unable to add a contact in my contacts
• Make sure that your SIM card contacts are not full; delete
some files or save the files in the device contacts (i.e. your
professional or personal directories).
SIM card PIN locked
• Contact your network carrier to obtain the PUK code
(Personal Unblocking Key).
I am unable to connect my device to my computer
• Install User Center.
• Check that your USB driver is installed properly.
• Open the Notification panel to check if the Android
Manager Agent has been activated.
• Check that you have marked the checkbox of USB
debugging.
• To access this function, tap Settings/System/About
phone, then tap Build number for 7 times. Now you may tap
Settings/System/Developer options/USB debugging.
• Check that your computer meets the requirements for
User Center Installation.
• Make sure that you’re using the right cable from the box.
I am unable to download new files
• Make sure there is sufficient device memory for your
download.
• Check your subscription status with your carrier.
The device cannot be detected by others via Bluetooth
• Make sure that Bluetooth is turned on and your device is
visible to other users (see “6.3 Connecting to Bluetooth
devices”).
• Make sure that the two devices are within Bluetooth’s
detection range.
My app cannot receive new notifications while running in
the background.
• Swipe up on the home screen, tap Settings > Apps &
notifications > Notifications and activate your desired
apps.
How to make your battery last longer
• Make sure you follow the complete charge time (minimum
2.5 hours).
• After a partial charge, the battery level indicator may not
be exact. Wait for at least 20 minutes after removing the
charger to obtain an exact indication.
• Adjust the brightness of screen as appropriate
• Extend the email auto-check interval for as long as possible.
• Update news and weather information on manual demand,
or increase their auto-check interval.
• Exit background-running applications if they are not being
used for a long time.
• Deactivate Bluetooth, Wi-Fi, or GPS when not in use.
The device will become warm following prolonged
game playing, internet surfing or running other complex
applications.
• This heating is a normal consequence of the CPU handling
excessive data. Ending above actions will make your device
return to normal temperatures.