Samsung A886 - Manual (Page 172)

Solving Problems
166
Solving Problems
If you are experiencing problems with your phone, perform the following
simple checks before contacting a service professional. This may save you
the time and expense of an unnecessary service call.
When you switch your phone on, one of the following
messages appears
Insert SIM Card

Check that the SIM card is correctly installed.
Phone Locked Enter Password

The automatic locking function has been enabled. You must enter the
phone’s password before you can use the phone.
Enter PIN

You are using your phone for the first time. You must enter the Personal
Identification Number (PIN) supplied with the SIM card.

The PIN Check feature is enabled. Every time the phone is switched on,
the PIN has to be entered. To disable this feature, use the Check PIN
Code menu (see Security in “Phone” on page 151).
Enter PUK

The PIN code was entered incorrectly three times in succession and the
phone is now blocked. Enter the PUK supplied by your service provider.
Phones use both PIN1 and PIN2 codes, which require PUK1 and PUK2
codes to unblock. Make sure you know which PIN code is locked and
apply the correct PUK code.