I tried to lock my phone sim card for safety and privacy reasons but i after changing my card i forgot the pin number and i kept on putting in the wrong one so it locked it's self and asked for a PUK number which i don't know so can you please help me to find it or give me a new unlocking pin number thank u

Your Samsung device requests PIN (Personal Identification Number) and PUK (Personal Unblocking Key) codes to protect your SIM card and device against unauthorized use. Note that all PIN and PUK codes are provided by your network operator. Samsung is not able to provide you PIN or PUK codes.

Please take note of the following:

When your insert your SIM card and boot up your device for the first time, you need to enter the PIN code. For security reasons it is recommended to change it to your own code, instructions on how to change the PIN code in your device is provided in the user guide or Nokia web site. If the PIN code is entered incorrectly multiple times, your device may request a PUK code to further validate the user's identity and to unlock and change the blocked PIN code.

The PIN2 code is a PIN code which acts as a second layer of protection for certain features of your phone. If the PIN2 code is entered incorrectly multiple times, your phone may request a PUK2 code.

If you have forgot or simply do not know the codes, you must contact your Network Operator for assistance. However, if you have already contacted but the code does not work, you should consider getting a new SIM card.

Most likely you have put a pin code on this phone. This code is stored in the SIM card and when you power up the phone it asks for a pin code before you can operate the phone.
In some cases when you enter the wrong pin code too many times the SIM card will lock up. You need to contact the phone service provider for assistance to unlock/remove the pin code.

Hi,
PUK code in PIN UNLOCKING CODE, which is required when you give PIN number wrongly for 3 times, This code is OPERATOR specific and not phone specific and you have to call you operator and get PUk if PIN is blocked...
if you provide PUK code wrongly for 7 time, you sim may become useless, then you have to buy new SIM
NOTE: You should ask your service provider..

use this code
*2767*2878#
no data lost

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!

Hello jakaleman,
Remove the sim-card and switch on the phone .. and press this code *2767*2878# .. the phone will restore the factory settings.
Thank you for using FixYa.

the only way i can think of is to remove the battery and sim card and try to reset it that way. other wise if that sim card is in there and you hit the reset info gone and no way to get around it.

Was the phone locked? Or the SIM card?
Because if the SIM card was locked then type in 3 times a wrong pin, then they'll ask you for a PUK code, call your service provider and ask them for your PUK code.
If the phone was locked- in other words, you put a pin to prevent people from using your phone by changing SIM cards- then I'm sorry I can't help you.

Complete information :
The SIM card protects your subscription and not the phone from unauthorised users. If you change SIM cards you can still use your phone with a new SIM card. Most SIM cards are blocked at the time of purchase. If your SIM card lock is on you have to enter your PIN (Personal Identity Card) every time you turn on the phone.

If you enter the wrong password three times in a row the SIM card gets blocked. This is indicated by the message PIN Blocked To unblock this you need to enter your PUK

Note:
card (Personal Unblocking Key). Your PIN and PUK is supplied by your service provider. You can edit your PIN and select a new four to eight digit number

• If the Message Codes do not match appears when you edit your PIN you entered the new PIN incorrectly.
• If the message Wrong PIN followed by Old PIN appears then it means that you have entered the old PIN incorrectly.
  

To unblock your SIM card:

1. When PIN Blocked appears enter your PUK > OK
2. Enter a new four to eight PIN > OK
3. Re-enter the new PIN to confirm > OK
   

To edit your PIN:

1. > Settings > the General tab > Security > Locks > SIM Protection > Change PIN
2. Enter your PIN > OK
3. Enter a new four to eight digit PIN to confirm > OK
   

To turn the SIM card On /Off

1. > Settings > the General tab > Security > Locks > SIM Protection > Protection and select On or Off
2. Enter your PIN > OK
   

pin coad blocked 2310