LG K10-LGK420N User Manual

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Appendix
80
 NOTE 
Your personal data from internal device storage—including information about 
your Google account and any other accounts, your system/application data and 
settings, any downloaded applications and your DRM licence—might be lost in 
the process of updating your device software. Therefore, LG recommends that 
you backup your personal data before updating your device software. LG does 
not take responsibility for any loss of personal data.
This feature depends on your network service provider, region and country.
FAQ
This chapter lists some problems you might encounter when using your 
device. Some problems require you to call your service provider, but most 
are easy to fix yourself.
Message
Possible causes
Possible corrective measures
SIM card 
error
There is no SIM card 
in the device or it is 
inserted incorrectly.
Make sure that the SIM card is 
correctly inserted.
No network 
connection/ 
Dropped 
network
Signal is weak or 
you are outside the 
carrier network.
Move toward a window or into 
an open area. Check the network 
operator coverage map.
Operator applied 
new services.
Check whether the SIM card is more 
than 6~12 months old. If so, change 
your SIM card at your network 
provider's nearest branch. Contact 
your service provider.