Verykool i604 - Manual (Page 48)

2. Preferences
Select the Preferred Networks. The default network is the
network where the SIM card belongs. Select Options to perform
the following operations:
§ Add From List: Display all PLMN list.
§ New: Create a new network and set the network priority.
§ Change Priority: Reset the selected Network Priority.
§ Delete: Delete the current preferred network.
3. GPRS transfer pref.
You can choose Data prefer or Call prefer.
Security Settings
 SIM Security: You will be asked to input the PIN. It can be
configured if the PIN is correct. If SIM card is set on, you
will need to input the PIN every time you switch on the
power. If you enter incorrect PIN three times, you will be
asked to enter PUK. PUK is used to release and modify the
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