Samsung XE500C21-A04US - Manual (Page 5)

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FAQ
Why do I keep losing my connection?
This may be due to interference caused by other devices like cordless phones, microwave
ovens and other 2.4GHz band devices.
Why can’t I connect to Internet?
You may not be able to establish connection to Internet when you have set incorrect profile.
Refer to your SIM card’s service provider and obtain correct APN / User name / Password /
PhoneNumber. Then, select proper profile or create a new profile according to the obtained
information.
Why do I get a slow connection while I am using HSDPA/HSUPA?
HSDPA/HSUPA is a shared data service. You may experience slower connections when several
users in the same area are accessing the HSDPA/HSUPA service.
There is no operator when I clicked network icon
- Check if there is Enable Mobile Data. Then click it to enable the mobile data.
- Please check if you inserted activated SIM card correctly.
- Please go to another place so that it may search the network correctly.
I entered the wrong PIN a few times. Why can’t I use my device anymore?
If you enter the wrong PIN three times, your SIM card locks automatically. To unlock the card,
you must enter a PUK which is provided by service provider at the time of purchase. If you enter
the wrong PUK ten times, SIM card will no longer work.)