Why Phones Prompt for a PUK Code
On a GSM handset, the network information is stored in the SIM card instead of in the handset. This makes it easy to transfer the number from one phone to another, but it's also a security risk. A lock code on the handset doesn't prevent someone from taking the SIM card out and putting it in a different phone. If you lose your phone, someone could make unauthorized calls on your account on another handset. The SIM PIN is a lock on the SIM card itself. If you input the SIM PIN wrong three times, the carrier's network locks the SIM and the phone displays an "Enter PUK Code" message. "Why Some Tracfones Don't Require PUK Codes
Unlike most cellular carriers, TracFone does not own their network hardware. They are a cellular reseller that lease space on other carriers' networks. In areas where its leasing partner is T-Mobile or AT&T, Tracfone sells GSM handsets. In other areas, it sells CDMA handsets. CDMA phones do not use PUK codes because they do not have SIM cards. The network information is stored in the handset's memory, and the phone's serial number is connected to the account on the carrier's network.
Getting the Correct Code
When your LG TracFone prompts you for the PUK code, do not enter any more codes. Even if you enter the correct SIM PIN, the phone will not accept it. You also cannot use an old PUK code to unlock the SIM. The PUK code is randomly generated by the carrier's network when the SIM PIN locks. You will need to get the PUK code from Tracfone. Contact TracFone customer care at 800-867-7183 for the correct code. You can contact customer care from the phone with the locked SIM card, but it's best to call from another line so the representative can walk you through the process of entering the code.
Entering the PUK
Enter the PUK code on the prompt screen with the dial pad. PUK codes are eight digits. On some TracFone handsets, the phone will immediately ask for a new SIM PIN as soon as you enter the PUK code. On other handsets, you must change the code manually. Check the "Settings" menu under "Security." Some LG phones have separate settings for the SIM PIN and handset lock, so make sure you choose the correct lock.
WHAT TO WITH THE PUK CODE
Once you have got the PUK code from your network, you will need to enter it into your phone. A notification will usually pop up, prompting you to enter the PUK code as soon as you turn your mobile on, so just follow the instructions on screen to proceed.
As soon as your phone is unlocked, you may be asked to enter a new SIM PIN number, but this can be turned off in the settings menu of the phone once it's fully unlocked.
WARNING: Do not try and guess your PUK code. If you enter it wrong 10 times, the SIM card will be permanently locked and you will need to get a new one from your network provider. There may be a charge for a new SIM card and you might be stuck without your phone for a couple of days while they send it out.
Unblock your SIM with your PUK
The PUK code is a number unique to your SIM card. It’s used to prevent unauthorized use of your account, and keep your SIM details safe. You’ll be asked for your PUK if your PIN code is entered incorrectly 3 times.
If you don’t have your PUK code, you can get it online through My Vodafone, or by giving us a call.
VODAPHONE
You'll need to enter your PUK with this sequence:
* * 05 * [PUK] * [NEW PIN] * [NEW PIN] #
Important information: You’ve got 10 attempts to enter your PUK correctly so be careful. After that, your SIM won’t work, you’ll need to get a replacement.
{When you buy Vodaphone SIM card, the PUK code to it will be marked on its pack. So never throw away the pack; some times, you might need it}
How to Unlock a Nokia with the PUK Code
You will be prompted to unlock a Nokia phone with the PUK code if you should happen to enter your pin code incorrectly three times. PUK codes are available from your network service provider. When you have obtained the PUK number, turn on your Nokia phone and input the 8 digit code when prompted, using the keypad. You will then have to enter a new PIN number and once confirmed, your phone will be unlocked.
What are the access codes on Nokia Phones (PIN codes, PUK codes, lock code and restriction code)
PIN (Personal Identification Number) codes
PIN code protects your SIM card against unauthorized use. It is asked when you insert the SIM card and boot up the device for the first time. It is 4 to 8 digits long and usually supplied with your SIM card. However, it is recommended to change the original PIN code to your own, the instruction on how to change the PIN code is provided in the user guide or Nokia Web site.
UPINcode is usually supplied with the USIM card. The USIM card is an enhanced version of the SIM card and is supported by UMTS mobile phones.
PIN2 code is also 4 to 8 digits long and is supplied with some SIM cards, and is required to access certain services.
If you enter any of the above PIN codes incorrectly three consecutive times, you need corresponding PUK codes to unlock them.
PIN code protects your SIM card against unauthorized use. It is asked when you insert the SIM card and boot up the device for the first time. It is 4 to 8 digits long and usually supplied with your SIM card. However, it is recommended to change the original PIN code to your own, the instruction on how to change the PIN code is provided in the user guide or Nokia Web site.
UPINcode is usually supplied with the USIM card. The USIM card is an enhanced version of the SIM card and is supported by UMTS mobile phones.
PIN2 code is also 4 to 8 digits long and is supplied with some SIM cards, and is required to access certain services.
If you enter any of the above PIN codes incorrectly three consecutive times, you need corresponding PUK codes to unlock them.
PUK {Personal Unblocking Key}
PUK code is 8 digits long and is required to change a blocked PIN code.
UPUK code is required to change a blocked UPIN code.
PUK2 code is required to change a blocked PIN2 code.
The PUK codes are also provided by your network operator.
Lock code / Security code:
PUK code is 8 digits long and is required to change a blocked PIN code.
UPUK code is required to change a blocked UPIN code.
PUK2 code is required to change a blocked PIN2 code.
The PUK codes are also provided by your network operator.
Lock code / Security code:
The lock (security) code protects your device from unauthorized use.
The default code supplied with the device is 12345. However, it is recommended to change the default code to your own. The instruction on how to change the security code is provided in the user guide or Nokia Web site.
Keep the new code in a safe place separate from your device.
If you get error notifications after 3 consecutive times security code entries, reboot the device and wait for 15 minutes, then try again. If the problem persists, contact your local Nokia Care Point.
The default code supplied with the device is 12345. However, it is recommended to change the default code to your own. The instruction on how to change the security code is provided in the user guide or Nokia Web site.
Keep the new code in a safe place separate from your device.
If you get error notifications after 3 consecutive times security code entries, reboot the device and wait for 15 minutes, then try again. If the problem persists, contact your local Nokia Care Point.
Restriction code / Restriction password:
The restriction code or restriction password may be required when using some network services, such as call restriction service. Note that not all network operators support such service.
If your device display "Enter restriction code" when you insert a new SIM card, it means that your device has been locked to use a certain operator's network and it does not accept SIM cards from other operators.
Contact your network operator for assistance.
Other PIN codes:
The module PIN is required to access the information in the security module of your SIM card.
The signing PIN may be required for the digital signature.
Important: If you do not know or forget any of these codes, always contact your network operator.
If your device display "Enter restriction code" when you insert a new SIM card, it means that your device has been locked to use a certain operator's network and it does not accept SIM cards from other operators.
Contact your network operator for assistance.
Other PIN codes:
The module PIN is required to access the information in the security module of your SIM card.
The signing PIN may be required for the digital signature.
Important: If you do not know or forget any of these codes, always contact your network operator.
How to find PUK code for BSNL sim card
Now the send sms to the Below
Your sim numbers PUK space Sim No. send to 53733 Example ; PUK 8526428103461123564 BSNL Mobile via Send This Messages to 53733
Your sim numbers PUK space Sim No. send to 53733 Example ; PUK 8526428103461123564 BSNL Mobile via Send This Messages to 53733
How to Find Sim numbers
Sim no will be at your back of your sim cards,
Here sim number is ******......
What to do after having PUK
code ******...... The your sim card is Locked then just now enter the PUK codes & enter ok and enter 0000 with a Repeat this code again the enter 0000. it’s Now unlocked your blocked BSNL Sim
Sim no will be at your back of your sim cards,
Here sim number is ******......
What to do after having PUK
code ******...... The your sim card is Locked then just now enter the PUK codes & enter ok and enter 0000 with a Repeat this code again the enter 0000. it’s Now unlocked your blocked BSNL Sim
To Obtain a PUK Code AT&T
When the error message "ENTER PUK CODE" is shown on the screen of the device:
Log into AT&T website.
Select Wireless from the myAT&T tab at the top of the page.
Select Phone/Device.
Click Unblock SIM Card.
A new page will open, containing the PUK code for your phone. Enter the code on your phone's screen to unblock the SIM and create a new PIN.
Unblock SIM Card
Enter the eight-digit PUK code on the phone, then press OK/Yes.
Note: Some Motorola phone users need to enter **05* if "enter PUK" is not already displayed. After entering **05*, enter the eight-digit PUK code and press OK.
Note: Some Motorola phone users need to enter **05* if "enter PUK" is not already displayed. After entering **05*, enter the eight-digit PUK code and press OK.
Select a new PIN code, then press OK/Yes.
Re-enter the PIN code, then press OK/Yes.
If the codes were entered successfully, the phone is ready for use.
If the incorrect PUK code is entered 10 times in a row, the SIM card becomes permanently locked and a new SIM card must be purchased. If the device is requesting PUK2, call Customer Care at 800-331-0500.
