I forgot my phone lock pin number, please help

The default PIN is '0000', 4 zeros.

https://www.google.com/search?q=philips+cd535+forgot+pin+code

Philips CD535 User Manual - ManualsLib

https://www.manualslib.com > ... > CD535
Advanced Settings Reset Reset to default settings Press , scroll MENU SELECT Enter the Master PIN when prompted and press If your PIN number is the default 0000

Ok i take it you pressed vol down and power to get in to factory mode this is usually Chinese on some phones what you need to do is get into recovery to so that power off your phone hold vol up then press power and hold both until you are taken to a menu where you see the android guy being repaired there it should be in English if you see "no command" press the power button once and the options should pop up
Hope i helped :)

There's good news and bad news. The good news is that you might well have forgotten that the default password on the Samsung phone is 00000000 (that's eight zeroes). The bad news is that if you've changed it to something else and that's what you've forgotten, you might well need to take the phone in to a service center to have them help you break it back open.
First, here's what Samsung says about working with passwords on the Security
Use this menu to protect the phone against unauthorized use by managing the several access codes of your phone and SIM card.
Note: If you enter an incorrect PIN/PIN 2 three times in succession, the SIM card is blocked. To unblock it you need to enter your PUK/PUK2 (Personal Unblocking Key). The codes are supplied by your network operator.
PIN check
The 4-to-8-digit PIN (personal identification number) protects your SIM card against unauthorised use. When this feature is enabled, the phone requires your PIN each time it is switched on.
Change PIN
Use this menu to change your PIN. The PIN Check feature must be enabled to use this feature.
Phone Lock
The Phone Lock feature locks the phone from unauthorised use.
When this feature is enabled, you must enter a 4- to 8-digit phone password each time the phone is switched on.
The password is preset to 00000000. To change the password, use the Change Password menu.
Change Password
Use this menu to change your phone password. The password is preset to 00000000.
Privacy
Use this menu to lock your media contents, including MMS messages, emails, images, videos, music files and sounds:
1. Press [OK/i] to check the item(s) to lock.
2. Press Save to lock the marked items.
3. Enter the phone password and press OK.
To access a locked item, you need to enter the phone password.

If that doesn't help you, as I said, you'll need to take your phone to the local service center and ask them for help. Just a tip: bring some sort of proof of purchase or ownership so they can differentiate between you losing your password and someone else showing up with a stolen telephone.
Good luck!

There's good news and bad news. The good news is that you might well have forgotten that the default password for Samsung phone is 00000000 (that's eight zeroes). The bad news is that if you've changed it to something else and that's what you've forgotten, you might well need to take the phone in to a service center to have them help you break it back open.
First, here's what Samsung says about working with passwords:
SecurityUse this menu to protect the phone against unauthorized use by managing the several access codes of your phone and SIM card.
Note: If you enter an incorrect PIN/PIN 2 three times in succession, the SIM card is blocked. To unblock it you need to enter your PUK/PUK2 (Personal Unblocking Key). The codes are supplied by your network operator.
PIN check
The 4-to-8-digit PIN (personal identification number) protects your SIM card against unauthorised use. When this feature is enabled, the phonerequires your PIN each time it is switched on.
Change PIN
Use this menu to change your PIN. The PIN Check feature must be enabled to use this feature.
Phone Lock
The Phone Lock feature locks the phone from unauthorised use.
When this feature is enabled, you must enter a 4- to 8-digit phone password each time the phone is switched on.
The password is preset to 00000000. To change the password, use the Change Password menu.
Change Password
Use this menu to change your phone password. The password is preset to 00000000.
Privacy
Use this menu to lock your media contents, including MMS messages, emails, images, videos, music files and sounds:
1. Press [OK/i] to check the item(s) to lock.
2. Press Save to lock the marked items.
3. Enter the phone password and press OK.
To access a locked item, you need to enter the phone password.

If that doesn't help you, as I said, you'll need to take your phone to the local service center and ask them for help. Just a tip: bring some sort of proof of purchase or ownership so they can differentiate between you losing your password and someone else showing up with a stolen telephone.
Good luck!

1. I forgot the PIN number on my Gigaset 2XXX system base station. What can I do?
   Please complete the following steps to reset the system PIN on 2XXX back to 0000. On the system base station:
   

• Press MENU.
  
• Scroll to SYSTEM SETTINGS but do not press SELECT.
• On the keypad, enter *65# (Star, 6, 5, Pound).
• It will display "SYSTEM PIN RESET" and return to the idle screen.
• Note: The base station system PIN will be reset to 0000
  
  

1. I forgot the PIN number on my Gigaset 2XXX cordless handset. What can I do?
   Please complete the following steps to reset the cordless handset PIN on the 2XXX back to 0000.
   

• Press MENU.
  
• Scroll to MOBILE SETTINGS and press SELECT.
• Scroll to LOCAL SETTINGS and press SELECT.
• Scroll to CHANGE PIN and press SELECT.
• On the keypad, enter *65# (Star, 6, 5, Pound).
• Note: The handset PIN will be reset to 0000
  
  
  

There's good news and bad news. The good news is that you might well have forgotten that the default password on the Samsung SGH-D500 phone is 00000000 (that's eight zeroes). The bad news is that if you've changed it to something else and that's what you've forgotten, you might well need to take the phone in to a service center to have them help you break it back open.
First, here's what Samsung says about working with passwords on the D500:
SecurityUse this menu to protect the phone against unauthorized use by managing the several access codes of your phone and SIM card.
Note: If you enter an incorrect PIN/PIN 2 three times in succession, the SIM card is blocked. To unblock it you need to enter your PUK/PUK2 (Personal Unblocking Key). The codes are supplied by your network operator.
PIN check
The 4-to-8-digit PIN (personal identification number) protects your SIM card against unauthorised use. When this feature is enabled, the phone requires your PIN each time it is switched on.
Change PIN
Use this menu to change your PIN. The PIN Check feature must be enabled to use this feature.
Phone Lock
The Phone Lock feature locks the phone from unauthorised use.
When this feature is enabled, you must enter a 4- to 8-digit phone password each time the phone is switched on.
The password is preset to 00000000. To change the password, use the Change Password menu.
Change Password
Use this menu to change your phone password. The password is preset to 00000000.
Privacy
Use this menu to lock your media contents, including MMS messages, emails, images, videos, music files and sounds:
1. Press [OK/i] to check the item(s) to lock.
2. Press Save to lock the marked items.
3. Enter the phone password and press OK.
To access a locked item, you need to enter the phone password.

If that doesn't help you, as I said, you'll need to take your phone to the local service center and ask them for help. Just a tip: bring some sort of proof of purchase or ownership so they can differentiate between you losing your password and someone else showing up with a stolen telephone.
Good luck!

Menu - Settings - Phone Settings - General - Security - Phone and Sim - Lock Code

code 87612,if you fail to get it working you might also try 93801

There's good news and bad news. The good news is that you might well have forgotten that the default password on the Samsung SGH-D500 phone is 00000000 (that's eight zeroes). The bad news is that if you've changed it to something else and that's what you've forgotten, you might well need to take the phone in to a service center to have them help you break it back open.
First, here's what Samsung working with passwords recovery:
Security Use this menu to protect the phone against unauthorized use by managing the several access codes of your phone and SIM card.
Note: If you enter an incorrect PIN/PIN 2 three times in succession, the SIM card is blocked. To unblock it you need to enter your PUK/PUK2 (Personal Unblocking Key). The codes are supplied by your network operator.
PIN check
The 4-to-8-digit PIN (personal identification number) protects your SIM card against unauthorised use. When this feature is enabled, the phone requires your PIN each time it is switched on.
Change PIN
Use this menu to change your PIN. The PIN Check feature must be enabled to use this feature.
Phone Lock
The Phone Lock feature locks the phone from unauthorised use.
When this feature is enabled, you must enter a 4- to 8-digit phone password each time the phone is switched on.
The password is preset to 00000000. To change the password, use the Change Password menu.
Change Password
Use this menu to change your phone password. The password is preset to 00000000.
Privacy
Use this menu to lock your media contents, including MMS messages, emails, images, videos, music files and sounds:
1. Press [OK/i] to check the item(s) to lock.
2. Press Save to lock the marked items.
3. Enter the phone password and press OK.
To access a locked item, you need to enter the phone password.

If that doesn't help you, as I said, you'll need to take your phone to the local service center and ask them for help. Just a tip: bring some sort of proof of purchase or ownership so they can differentiate between you losing your password and someone else showing up with a stolen telephone.
Good luck!

Try this sollution:

Insert an accepted Simcard.
-Press 2945#*1201#
-Menu
-Settings
-Security Settings
-Sim Locks
-Select Lock Type
-Deactivate
NCK: 5977825?
SPCK: 825?3583

Please note that ? can be any number except 0 and 7. Try them all.
i hope it will work
so don't forgot to vote me

Locking and Unlocking the Device: FOR LG CU 400

1. From the standby screen, press Menu.
   
   
2. Scroll to and select Settings.
   
   
3. Scroll to and select Security.
   
   
4. Scroll to and select Lock Handset.
   
   
5. Select desired option:
   • When Power On
   • When Smartchip Changed
   • Immediately
   • Off
     
     
6. Enter the Security Code, press OK.
   NOTE: The default security code is 0000.
   

Setting the PIN Code:

1. From the standby screen, press Menu.
   
   
2. Scroll to and select Settings.
   
   
3. Scroll to and select PIN Code Request.
   
   
4. Scroll to and select On.
   
   
5. Enter the PIN code, press OK.
   NOTE: Default PIN code is 1111.
   

Changing the Security Code:

1. From the standby screen, press Menu.
   
   
2. Scroll to and select Settings.
   
   
3. Scroll to and select Change Codes.
   
   
4. Scroll to and select Security Code.
   
   
5. Enter the current Security Code, press OK.
   NOTE: The default security code is 0000.
   
   
6. Enter in the New security code, press OK.
   
   
7. Confirm Security Code, press OK.
   

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.