Motorola V540 Owner's Manual page 43

4 digits of your phone number before you receive your
phone.
If you forget your unlock code, try entering 1234 or the last
4 digits of your phone number. If that does not work, at the
Enter Unlock Code
prompt:
Press
1 M
2 keypad keys
3 OK key
If you forget your security code, SIM card PIN code, or
PIN2 code, contact your service provider.
To
display the unlock code
bypass screen
enter your security code
submit your security code
41