Verykool R25 - Manual (Page 20)

USB mass storage function or select Back to maintain the power
on status, and charge the mobile phone.
14 Common Questions
Unable to make some calls
n
Call barring has been set and barred utilization of the mobile
phone. Please check and cancel call barring.
Other person is answering my call
n
The mobile phone has been set into divert your calls to another
phone number. Please check and cancel call divert.
The mobile phone cannot search for the network
n
The mobile phone is outside of the network coverage area (or
there are physical obstructions between the mobile phone
and the transmitter), and calls cannot be made or answered.
Check the signals and find the area that of good signal
strength.
In the operation process, the mobile phone may display the
following operating tips:
“Emergency”
n
You are outside the network coverage area of the service
provider. But another network area where you locate allows
you to make emergency call according to the signal strength.
“Invalid SIM”
n
The SIM card of the mobile phone is locked and the inserted
SIM card is unable to be accepted. Please insert the correct
SIM card or contact with the vendor.
“Please Enter PUK”
n
The SIM card has been locked since the wrong PIN code has been
inputted for three times. You must consult your network provider
for special PUK code with eight numbers to unlock the SIM card
(The PUK code may have been provided with your PIN code at
the same time).
Warning:
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