92
93
My device turns off by itself
• Check that your screen is locked when you are not using
your device, and make sure the Power/Lock key is not mis-
contacted due to unlocked screen.
• Check the battery charge level.
• My device cannot charge properly
• Make sure that your battery is not completely discharged;
if the battery power is empty for a long time, it may take
around 20 minutes to display the battery charger indicator
on the screen.
• Make sure charging is carried out under normal conditions
(32°F to +104°F).
• When abroad, check that the voltage input is compatible.
My device cannot connect to a network or “No service”
is displayed
• Try connecting in another location.
• Verify the network coverage with your carrier.
• Check with your carrier that your SIM card is valid.
• Try selecting the available network(s) manually
• Try connecting at a later time if the network is overloaded.
My device cannot connect to the Internet
• Make sure that the internet access service of your SIM card
is available.
• Check your device’s Internet connecting settings.
• Make sure you are in a place with network coverage.
• Try connecting at a later time or another location.
Invalid SIM card
• Make sure the SIM card has been correctly inserted (see
“1.2.1 Setup”).
• Make sure the chip on your SIM card is not damaged or
scratched.
• Make sure the service of your SIM card is available.
I cannot find my contacts
• Make sure your SIM card is not broken.
• 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”).