Tip & How-To about Cell Phones

How to lock your phone

First go to menu settings and security and phone lock
after enter your code and give security phone

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3 Answers

I have forgotten my unlock code to lg revere


This is copied directly from the manual - check out #5 at the bottom.
Hope it helps!

7.7 Security

The Security menu allows you to

secure the phone electronically.

1. Open the flip and press

[MENU]

2. Press Settings & Tools.

3. Press Phone Settings.

4. Press Security.

5. Enter the four-digit lock code.

The lock code is the last 4 digits

of your mobile phone number if

it is set. The lock code is the last

4 digits of your MEID if your
mobile phone number is not set.

Aug 02, 2012 | LG Revere MobiPhone - Black Verizon...

3 Answers

i can't change my security code hw can i change it ? it is 12345 the dafualt one , and i want to change it how ?


I suggest you leave the security code alone, it is used to clear the phone call logs etc.
I recommend to put a pin code on the SIM card to lock your phone's keyboard. When you open your phone or unlock the keypad to access the phone's menu etc. then you need to enter the 4 digit pin code. This also prevents anyone accessing your phone unless they have this pin code.

Sep 09, 2011 | Nokia Classic 2700 Cell Phone

2 Answers

Need to unlock a Nokia 6103b


Unlock your phone
  • Press Menu, enter the lock code, then press OK.
Answering a call when the phone is locked
  • Press Answer.
To change the lock code of your phone
Your phone's lock code is used to lock and unlock your phone.
The default lock code is 1234.
  1. Use Menu 4-3-2-3 (Settings - Security settings - Access Codes - Change lock code) to change the lock code.
  2. When the phone requires the lock code, it displays "Enter lock code:".
  3. Enter the code, then press OK.
If you enter a wrong lock code five times in succession, your phone prompts you for the security code.
Saving the unlocked phone number

Use Menu 4-3-2-2 (Settings - Security - Settings - Unlocked phone number) to save a number that may be called even when your phone is locked. You will be required to enter the lock code.
  1. Calling the unlocked phone number.
  2. Press the Up or Down arrow keys or or manually enter the number exactly as it is saved, then press Call.
Note: The More key will pause the automatic scrolling of the help text. Pressing the More key or the Up or Down arrow keys will toggle through the pages. The More key is only displayed when the help text is displayed.

Jan 26, 2009 | Nokia 6103 Cellular Phone

1 Answer

cell blocked


Securing your Shine
Secure your LG Shine and your account from thieves by locking your phone and your SIM card Losing a phone through accident or to a light-fingered thief is annoying, frustrating and potentially very costly, especially if the 'finder' uses your SIM card to make expensive calls. You can, however, lock both your phone and your SIM card with four-figure PIN numbers to prevent unauthorised use.
The first line of defence is to set a SIM card PIN. This means that whenever you turn on your handset you have to enter a PIN code before the SIM can be used. The default PIN code for your SIM is dependent upon your network; usually it will be found in a small booklet that came with the SIM card.
The PIN can be enabled, disabled or changed from the Security menu – but you only get three chances to enter it correctly. After those three, the SIM will get locked and can only be unlocked by entering the PUK (PIN Unlocking Key) which your network can give you. Enter the PUK incorrectly 10 times, and the SIM will be irrecoverably locked.
To activate a PIN code request, open the main menu by clicking on the scroll wheel. Click 9 to access the Settings menu and click 6 to enter the Security menu. The first item is PIN code request - click 1 or OK to open it. By default this will be set to off. To activate a PIN request, click 1; you'll now be prompted to enter the four-digit PIN. When you've done this, click OK, and if the pin was correct, you'll see the confirmation message 'Complete'.
To deactivate the PIN code request, you would simply select Off from the menu by pressing 2; you'll need to enter the PIN code whenever you change this setting.
PIN code request prevents another user from using your lost or stolen SIM card in their own phone. To lock your phone, and thus render it useless to a thief, you can activate Phone lock.
Two levels of handset locking are available. The first - called 'When power on' in the Phone lock menu - is to require an unlock code to be entered whenever the handset is switched on. This can be confusing and irritating when used together with the SIM PIN, so a second option is to only request the handset unlock code when the SIM card has been changed - called 'When SIM changed'. This means that if your phone is stolen, the thief can't use their own SIM card in it as the phone will need a PIN code to unlock.
To activate either option, go to the Security menu (clicking 9 for Settings and 6 for Security from the main menu) and click 2 to enter the Phone lock menu. Click 2 to activate When power on or 3 to activate When SIM changed. In either case you'll be prompted to enter the security code. By default this is 0000. Enter the code and click OK to confirm.
To change either code, go to the Security menu again (clicking 9 for Settings and 6 for Security from the main menu) and click 5 to enter the Change codes menu. To change the handset's security code, click 1 to select Security code, or to change the SIM PIN, click 2 to select PIN1 code. In either case you'll be prompted to enter the old code before entering the new code twice, clicking OK to confirm each time.

Jan 10, 2009 | LG Shine KE970 Cellular Phone

3 Answers

LG CU400


Locking and Unlocking the Device: FOR LG CU 400
  1. From the standby screen, press Menu.
    pattlnk_11202006_1832-standby.jpg
  2. Scroll to and select Settings.
    pattlnk_11202006_1835-settings.jpg
  3. Scroll to and select Security.
    pattlnk_732006_2014-security.jpg
  4. Scroll to and select Lock Handset.
    pattlnk_732006_2015-lock.jpg
  5. Select desired option:
    • When Power On
    • When Smartchip Changed
    • Immediately
    • Off
      pattlnk_732006_2015-lock1.jpg
  6. Enter the Security Code, press OK.
    NOTE: The default security code is 0000.
    pattlnk_732006_2016-lock2.jpg
Setting the PIN Code:
  1. From the standby screen, press Menu.
    pattlnk_11202006_1832-standby.jpg
  2. Scroll to and select Settings.
    pattlnk_11202006_1835-settings.jpg
  3. Scroll to and select PIN Code Request.
    pattlnk_732006_2018-set_pin.jpg
  4. Scroll to and select On.
    pattlnk_732006_2018-set_pin1.jpg
  5. Enter the PIN code, press OK.
    NOTE: Default PIN code is 1111.
    pattlnk_732006_2019-set_pin2.jpg
Changing the Security Code:
  1. From the standby screen, press Menu.
    pattlnk_11202006_1832-standby.jpg
  2. Scroll to and select Settings.
    pattlnk_11202006_1835-settings.jpg
  3. Scroll to and select Change Codes.
    pattlnk_732006_2022-change_code.jpg
  4. Scroll to and select Security Code.
    pattlnk_732006_2022-change_code1.jpg
  5. Enter the current Security Code, press OK.
    NOTE: The default security code is 0000.
    pattlnk_732006_2023-change_code2.jpg
  6. Enter in the New security code, press OK.
    pattlnk_732006_2023-change_code3.jpg
  7. Confirm Security Code, press OK.
    pattlnk_732006_2023-change_code4.jpg

IMPORTANT: If the incorrect lock code is entered more than 3 times the phone will display "ENTER PUK". If this message is displayed contact Customer Care.

Nov 28, 2007 | LG CU400 Cellular Phone

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