Phone no longer works - well, pressing the power on button gets the buzzing noise when the phone is turned on, then a prompt to enter pin number after doing this a white screen appears with the nokia hands which lasts for a few seconds and then the phone just switches off itself - this is all it will do now.

The anti-theft feature is intended to discourage
theft or the audio system by preventing
the system from operating when it
is moved to a different vehicle.
This feature works by allowing you to enter
a Personal Identification Number (PIN).
When the audio system is disconnected
from its power source, such as when the
audio system is removed or the battery is
disconnected, the system will not operate
again unless the PIN is reentered.

On Page 4-52, it goes on to say:

Setting the Anti-Theft Function
1) Turn off the power by pressing the
power on/off knob (1).
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2) Press the power on/off knob (1) while
pressing and holding the track up button
(2). The "ENTRY 0000" will blink
and the audio system enter PIN-input
mode.
NOTE:
Establish your PIN by combining numbers
from 1 to 6 into any 4-digit number. If you
forget your PIN, when you remove the battery
for repair etc., you will no longer be
able to operate the audio system.
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3) Input the four digit PIN using preset buttons
1 to 6.
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4) After you enter your four digit PIN, the
display will return to "0000".
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5) Input the same 4-digit number you previously
entered.
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6) The power of the audio system will turn
off.
NOTE:
Write down your PIN for the future use.
Canceling Your Established PIN
Setting
This operation is to be done when you
want to cancel the anti-theft function or
change your PIN.
1) Turn off the power by pressing the
power on/off knob (1).
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2) Press the power on/off knob (1) while
pressing and holding the track up button
(2). The "DELETE 0000" will blink
and the audio system will enter the cancel
mode.

& finally, Page 4-53 wraps it up:

INSTRUMENT PANEL
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3) Input your PIN. The power of the audio
system will turn off and your PIN will be
deleted.
To change your PIN, first delete your
current PIN, then set a new one.
Confirming Your Personal Identification
Number (PIN)
When the main power source is disconnected
such as when you exchange your
battery, etc, you will have to confirm your
PIN to be able to use the audio system.
To confirm your PIN:
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1) Turn the ignition switch to the "ACC"
position.
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2) Input your PIN.
If the PIN that you input matches the
registered PIN, the power of the audio
system will turn off, and you will be able
to operate the audio system.



AND THIS IS AN IMPORTANT NOTE:

• If you input your PIN incorrectly, "----" will
be displayed and the anti-theft function
lock mode is entered. If you enter an
incorrect PIN fewer than 6 times, the
locking time will be for 15 seconds; if you
enter an incorrect PIN more than 6
times, the locking time will be for 15 minutes.
• If you forget your PIN and enter a wrong
PIN, you can not perform any further
operation.

press the call button

Here are a couple of codes to soft/hard reset/format a Nokia N95 mobile device:
Soft reset code *#7370#
Hard reset code *#7780#
If the hard format code mentioned aboive does not work, try the following manual method to hard reset/format Nokia N95:
+ Turn off the mobile device.
+ Press and Hold the following three buttons: the green Call Answer button, the “*” button, and the number “3′ button.
+ While holding these buttons, turn on the phone and keep holding the keys untill the mobile phone restarts and prompts you to enter details.

In the bluetooth menu turn the function on, next turn on discoverable mode. Press and hold the power button on the bluetooth until the light turns on steady, usually 10 seconds or longer. Next on your phone select "search for a new device". It should find the bluetooth. It will ask for a PIN number enter 0000 (four zeros) then select pair. It should automatically connect every time after this. Be sure to turn the discoverable mode off so other devices cannot access your phone. Good luck to you

Turn your phone's bluetooth on. Press and hold the call button on the headset until the phone detects it. When prompted for a password enter 0000.

Yuo can change the pin # even if you don't know the old one then you can can turn off with the new one.
Press the 'MENU' button on the remote control.
Press cursor down to select SETTINGS.
Press cursor right twice.
Press cursor down to select MENU PREFERENCES.
Press cursor right.
Press cursor down to select CHANGE PIN.
Press cursor right once.
Enter code 0711 if you have don't know yours
Enter a new four digit PIN using number buttons. Number combinations from 0000 to 9999 are valid.
When prompted to confirm PIN, enter new PIN again.
Press the 'MENU' button to exit the menu.

1. Turn on your phone using the red power/end button. While in the programming mode the [OK] key is used to save, the left soft key to [Exit] without saving and the right soft key [Back] to return to the previous step.
2. Enter ##626* (##NAM*) for NAM Programming
3. You will be prompted to ENTER SUBSIDY CODE
4. Enter 333333 (3 six times)
5. Press the [OK] button to select the MIN (Mobile Identification Number)
6. Enter your new 10 digit Cricket MIN and press [OK]
7. Press Navigation (arrow) down once to access the MDN (Mobile Directory Number/10 Digit Phone Number) and press [OK]
8. Enter your new 10 digit Cricket MDN and press [OK]
9. Press Navigation (arrow) down once to access the IMSI (do not change from IMSI_11_12=00)
10. Press the Navigation (arrow) down key twice to access the CDMA System ID and press [OK]
11. Enter the 1 to 5 digit CDMA System ID and press [OK]
12. Press the red power/end button to exit.
13. (mdn is your phone number min and cdma sytem id will be given by customer serv rep
    

Call the voice box from a land line and it should prompt you to enter your mobile/PIN number.

It sounds just like a keyboard lock and you need the code to unlock it. though it should be prompting you,

if you push * and # on the same time your keyboard locked. When you press it again, you unlock your keyboard

Your phone’s four-digit unlock code is
originally set to 1234
The six-digit security
code is originally set to 000000
If you forget your unlock code: At the
Enter Unlock Code prompt, try entering 1234 or the
last four digits of your phone number. If that
doesn’t work, press s and enter your
six-digit security code instead.
If you forget other codes: If you forget your
security code, SIM PIN code, PIN2 code, or
call barring password, contact your service
provider.

hope any of this helps .

I believe you have the expansion capacity of the phone all used up. The phone cannot register any more handsets until you delete the handset registered that is not in use. First check the handsets and see what handset numbers they carry. It should be #1,#2,#3,and #4 if it does not then you will have to delete the one that is missing or if it is then delete handset #5.To do this you will have to use one of the handsets registered to the base. First Press the MENU/ OK button then scroll down to ADV,SETTING then Press MENU/OK then scroll down to DEREGISTER then Press MENU/OK. Then ENTER HANDSET PIN would show, if you have not changed the pin enter 0000 if you have enter your pin member. From the next options select HANDSET and press MENU/OK from the next set of options select the handset number you want to DEREGISTER and press MENU/OK from the next option select YES then MENU/OK. Then try to reregister the new handset To do this Press the MENU/OK button then go to ADVANCE SETTING press MENU.OK scroll to REGISTER then press MENU/OK Select the base number displayed then press MENU/OK. PLEASE WAIT will appear. Then from the base press and hold the PAGE button until the handset prompts you to ENTER PIN # .Enter 0000 OR your pin number then you will see PLEASE WAIT. A tone will confirm the handset registration.