Puc codes

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How to unlock your phone with a PUK code

Jump to how to get a PUK code by provider:

What is a locked phone?

Sometimes when you buy a new handset, it can be locked to the network you purchased it from. This means you can’t switch providers as the phone is only compatible with the one it is linked to. This is a common problem for people who buy phones on a contract, then decide to switch networks once the contract runs out.

Alternatively, you could have entered your PIN incorrectly too many times, causing the phone to lock as an anti-theft safety precaution. 

The easiest and most common way to unlock your phone is by using a PUK code. 

What is a PUK code?

A PUK code is a ‘Personal Unlocking Key’ (it is also sometimes referred to as a PUC code: ‘Personal Unlocking Code’). 

It is used to reset the PIN number on a phone if the protective software was triggered to lock the SIM card or handset. If the PIN/password is entered incorrectly more than three times, the phone locks itself. In order to unlock it, you'll need your 8 digit PUK code.

Though they are usually used by mobile providers to unlock a phone after its security measures have been triggered, a PUK code can also be used to remove a network restriction from a phone. 

Be careful though: if you enter your PUK code incorrectly more than ten times, the SIM card will become irrecoverably blocked and you’ll require a new one. 

PUK versus PAC

A PAC code (‘Porting Authorisation Code’) is a sequence of numbers that you can request from your current provider in order to keep your number when switching networks. Keeping your number is convenient for contacts and online accounts. 

It is free to obtain a PAC code, though some networks may try to convince you not to leave before sending you your number. Once you have received your PAC code, you can send it to your new network so your number can be transferred over. 

Typically, you’ll need a PAC code after using a PUK code to allow you to switch networks and carry your number over. 

How do you get a PUK code?

If your locked phone is asking you for your PUK code, there’s a few ways that you can find it. 

Firstly, if you kept your SIM card package when it arrived, you can find the code on the back of the plastic you snapped your SIM card from. If you can’t find this or didn’t keep it, you can still contact your mobile network for a PUK code. 

Like obtaining a PAC code, the method varies between providers. 

EE, BT Mobile, Vodafone, O2, and Tesco Mobile are just some of the major networks that still sell locked phones. Though Ofcom plans to ban the selling of locked phones, for now, you will still need to contact these providers if you’ve bought a handset from them. 

Asda Mobile

If you have a phone with us, you can contact us for free on 0800 079 2723 to receive your PUK code to unlock your handset.  

EE

To receive a PUK code from EE, you’ll need to log in to your EE account and follow these steps:

  • Menu > Manage device
  • Unblock SIM (Puk code)
  • Show PUK code

Once you have been given your PUK code, enter it into your phone and this will unlock the SIM. 

BT Mobile

Login to your BT Mobile account, and select the My phone and SIM button. You will find your PUK code listed under the information about your phone’s model and the SIM’s serial number. 

Vodafone

To obtain your PUK code from Vodafone, you’ll have to chat to a member of their team online and follow the steps they give you.

O2

To find out what your PUK code is, you can enter your number on their website, or sign in to your O2 account and go to My device > Device details

Tesco Mobile

To retrieve your PUK code, you need to log in to your Tesco Mobile account. You will be able to find your PUK number under Personal Details


With all of these networks, you also have the option of calling them directly on each of their numbers to discuss receiving your PUK code. Of course, you would probably have to use someone else’s phone if yours is locked. We have a variety of locked and unlocked handsets available to purchase from our online store or in some of our shops. 

We hope you’ve found our guide to PUK codes useful. Now that your phone is unlocked, you’re free to switch to whichever network you fancy. Not that we’re biased, but you should consider the many benefits that come with joining Asda Mobile! 

Sours: https://mobile.asda.com/scoop/how-to-unlock-your-phone-with-a-puk-code

PIN1 and PIN2 Codes / PIN Lock Disable Code (PUK)

PIN Codes (PIN1 and PIN2)

5GXi "crossy"FOMA

You can set two PIN codes on the docomo UIM Card (FOMA Card) for your FOMA handset, the PIN1 code and PIN2 code. The PIN1 code is used to prevent others from gaining unauthorized access to your mobile phone handset. PIN1 is a four- to eight-digit number (code) to verify the handset user and must be entered every time you insert the docomo UIM Card (FOMA Card) into the FOMA/Xi "crossy" handset or turn on the FOMA/Xi "crossy" handset power.
Entering the PIN1 code allows you to make and receive calls and use handset functions. The PIN2 code is a four- to eight-digit password that you enter when using or requesting user certificates or performing tasks such as resetting total call charges.

  • With some smartphone models, you will be requested to input a PIN code when you cancel airplane mode. The PIN code input screen does not appear when you insert the docomo UIM Card (FOMA Card) into the handset or turn on the power.

Using your PIN1 code

When the PIN1 code ON/OFF setting is set to ON, you are required to enter the PIN1 code when you turn on the handset power. If you enter the PIN1 code incorrectly, you will not be able to make or receive calls or use various communications functions. If the wrong PIN1 code is entered three times in a row, PIN Lock will be automatically activated.

  • With some smartphone models, you will be requested to input a PIN code when you cancel airplane mode. The PIN code input screen does not appear when you insert the docomo UIM Card (FOMA Card) into the handset or turn on the power.

Using your PIN2 code

When the PIN2 code ON/OFF setting is set to ON, you are required to enter the PIN2 code when making user certificate operations. If the wrong PIN2 code is entered three times in a row, PIN Lock will be automatically activated.

PIN code setting at the time of purchase

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  • You can change your PIN codes to different four- to eight-digit numbers of your choice from your handset.

Learning how to use your PIN codes

Please check how to change your PIN codes (PIN1 and PIN2 codes) in the user's manual (PDF).

User's Manual Download

How to change your PIN codes

You can change your PIN codes to desired four- to eight-digit numbers from your handset.
The handset PIN is required to make the change. For how to change your PIN codes, check the user's manual.

User's Manual Download

  • If the lock is activated, you need the PIN Lock Disable Code (PUK).

What to do if PIN Lock is activated

Enter the PIN Lock Disable Code (PUK) to unlock the locked PIN.

  • When the PIN Lock is activated, it cannot be unlocked by turning off handset power.

  • Turning off handset power does not return the count of incorrect PIN entries back to zero. (The three wrong PIN entries in a row count starts from the last correct PIN entry.)

PIN Lock Disable Code (PUK)

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The PIN Lock Disable Code (PUK) is used to unlock a PIN1 or PIN2 for which PIN Lock has been activated after the wrong PIN code is entered three times in a row.

Using your PIN Lock Disable Code (PUK)

After entering the PIN Lock Disable Code (PUK) to unlock a locked PIN, a screen appears for you to set a new PIN code. (In some handset models the PIN code is reset to the "0000" default value.)
If the wrong PIN Lock Disable Code (PUK) is entered ten times in a row, the docomo UIM Card (FOMA Card) is then completely locked.

PIN Lock Disable Code (PUK) setting at the time of purchase

Your PIN Lock Disable Code (PUK) is an eight-digit number that can be found on the subscription contract (customer copy) which you received at the time of subscription.

  • A copy of your subscription contract is given to you when you apply at a docomo Shop. If you made a new subscription at a retailer other than a docomo Shop, confirm your PIN Lock Disable Code (PUK) using a procedure described below in When you wish to confirm your PIN Lock Disable Code (PUK).

When you wish to confirm your PIN Lock Disable Code (PUK)

You can use the following procedures to confirm your PIN Lock Disable Code.

1. Confirm your PIN Lock Disable Code from docomo Online Application (docomo Online Application) of My docomo (i-mode, sp-mode, or PC version)

When Accessing From a PC or Smartphone (My docomo)

2. Contact the docomo Information Center

Contact the docomo Information Center, and confirm your PIN Lock Disable Code.

General Inquiries (docomo Information Center)

If you forget your PIN Lock Disable Code (PUK) or your handset is completely locked

The PIN Lock Disable Code (PUK) cannot be changed. If you forget it, visit a nearby docomo Shop with your UIM Card and documents such as a Japanese driver's license that verify your identity.

New windowdocomo Shop/d garden

  • Please note that the docomo Shop may not be able to process your request in the following case.
    • The shop cannot verify your identity.

Issuing and Changing Your PIN, ID, or Password

The following link lists the PIN required for using services and how to issue, change, and unlock the PIN.

Sours: https://www.nttdocomo.co.jp/english/support/trouble/password/pin/
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Personal unblocking key

A personal unblocking key (PUK), sometimes called personal unblocking code (PUC), is used in smart cards, 3GPPSIM cards and mobile phones to reset a personal identification number (PIN) that has been lost or forgotten.

Most mobile phones offer the feature of PIN protection. After switching on the phone, if the PIN security function is active, the user is required to enter a 4-8 digit PIN to enable the phone's non-emergency calling functions. If the wrong PIN is entered more than three times, either the SIM card, the device, or both become locked. They can be returned to their original unlocked state by entering a PUK provided by the mobile service provider, after verification. If the wrong PUK is entered 10 times in a row, the device will become permanently blocked and unrecoverable, requiring a new SIM card. Mobile phone users are therefore advised by most providers to keep their PUK written down in a safe place separate from the device.

After the PUK code is entered, the PIN must be reset. The PUK are used to unlock the PIN codes if the SIM card is blocked.[1]

See also[edit]

  • GSM USSD codes - Unstructured Supplementary Service Data: list of standard GSM codes for network and SIM related functions
  • SIM lock

References[edit]

External links[edit]

Sours: https://en.wikipedia.org/wiki/Personal_unblocking_key
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