Verykool i800 - Manual (Page 65)

65
Problems and solutions
To save the time and expense of an unnecessary service call, perform
the simple checks in this section before contacting a service
professional.
When your phone cannot be switched on

Make sure that you press and hold the power key for more than 1
second.

Make sure that the battery is well connected to your phone.
Remove the battery, re-insert the battery and restart your phone.

If the battery power is exhausted, recharge the battery.
When switching on your phone, the following messages appear

Enter phone lock code. The automatic locking function has been
enabled. You must enter the phone’
s lock code before you can use
the phone.

Enter PIN code. The PIN check feature is enabled. Every time the
phone is switched on, the PIN has to be entered; (If you are using
your phone for the first time, you must enter the PIN code supplied
with the USIM card).

Enter PUK code. The PIN code has been entered incorrectly three
times and the SIM card is now blocked. Enter the PUK supplied by
your network service provider.
USIM card error

USIM card is contaminated. Clean the metal contacts on the USIM
card with a clean cloth.

USIM card is not properly placed. Install the USIM card according
to the user’
s guide.

USIM card is damaged. Contact your network service provider.
Network failure

You may be in a weak signal area. Change location and try again.