Re: I have an ATT Samsung SHG AA37 phone and I have...
Have a friend with a different cell phone company (like verizon, t mobile) take out their sim card, put it into your phone & turn yours on. then give theirs back & put yours in again. this should unlock your phone. good luck!
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You can unlock your mobile yourself at home to unlock your Samsung model mobile using codes are the best way , why i am saying codes means to unlock your mobile with codes are simple & easy way, Get the unlock code from this site www.prounlocking.com/samsung/rs8wp8 ,it has the best instructions and simple ways to unlock your mobile from the network lock............If you unlock your phone using the unlock code then your phone gets permanently unlocked....After that, you can use it with any other network's sim card...........
Let me give you a little background and then some solutions. This generic because I don't know your carrier. I've used ATT as an example.
Phones are naturally unlocked, but a service provider might lock them
When originally manufactured, all GSM cell phones are unlocked. That is, they can be used with any SIM from any cellphone service provider - always assuming, of course, that the cellphone service provider has compatible GSM service on the same frequency bands that the phone can operate on.
Most cell phone service providers electronically 'lock' the phone so that it can only be used with their service. There are obvious reasons why they choose to do this - in particular, to force you to pay what are usually very high roaming charges when you take your phone out of their network and use it elsewhere in the world.
Fortunately, this locking is reversible. With some phones, it is possible to simply enter an unlocking password code into the phone and it is immediately then unlocked. Other phones need to be connected up to a special unlocking data terminal.
Your phone has to be unlocked by the carrier. LG, Motorala, Sony Ericsson, Nokia and most of their ilk, will not give consumers the unlock codes but don't despair.
A PUK (PIN Unlock Key) code is required to unlock SIM cards that have become locked following three successive incorrect PIN entries. If your SIM card becomes locked, you will need to get a PUK code from your carrier. For example, if you have AT&T to unlock your SIM card, you can obtain your phone's PUK code from AT&T by:
logging in to your myWireless Account online
using their Technical Support Chat
calling Customer Care at 1-800-331-0500
To get your phone's PUK code online from ATT:
Log in to your myWireless Account.
Select My Services under My Account.
From the My Services screen, select My Phone/Device.
Select Unblock SIM Card.
The Unblock SIM screen will display your PUK code.
Once you receive your PUK code, you will need to enter it into your phone to set a new PIN code.
Note: If you enter the wrong ATT PUK code 10 times in a row, your SIM card will be invalidated, and you will need to purchase a new SIM Card. The phone will display the following error: "PUK blocked call operator."
There are three other ways to unlock a phone:
The carrier will unlock the phone for you at one of its retail outlets;
Hi You can get the PUK code from the service provider... PUK code is called as PERSONNAL UNBLOCKING KEY. Your phone will ask for PUK code when you entered the PIN code wrongly several times depending upon the mobile make. The mobile asks for PUK code so that unauthorized persons do not use your mobile for wrong cause. To get PUK code please contact your service provider through phone or go directly to their office. They will provide you the PUK code for your mobile. The PUK code for mobile phone.so that you can open your phone. When you planning to call your service provider you cannot use your mobile as it is fully locked. Please use some other mobile with same network to call your service provider. While you get the PUK code ,the service provider customer care officer will ask for your personal details to check whether the mobile belongs to you only. If they are satisfied with your answers they will provide with the PUK code DONOT enter the PUK code several times wrongly,It will block your sim card permanently. This PUK code is FREE. You no need to pay any sum to get the PUK code Thank You
If you have lost your pin then you can enter the pin 3 times, util the
PUK lock appears. Then you unlock the PUK calling the phone company
that provided the SIM card inside your phone (eg Vodafone, Telecom,
Tmobile, Orange, AT&T etc.).
Calling the phone company is
the standard procedure to unlock a SIM card, however, if you do not
want to call the company you can just replace the SIM card with one
compatible with the phone, as PIN and PUK codes are related to SIM, and
not to the phone.
FOR ESCAPING FROM THIS PROBLEM CALL THE CUSTOMER CARE EXECUTIVE AND THEN GIVING DETAILS OF YOUR NAME AND YOUR PHONE NUMBER ASK YOU PHONE'S PUK CODE RO HIM. BY THIS YOU CAN GET YOUR PUK CODE. THEN ENTER THAT PUK CODE TO UNLOCK.