AT&T unlock code is used to make your AT&T phone work on other network carriers. AT&T allows you to unlock your phone or tablet to work on other network carriers, what you need to do is to enter an unlock pin and that pin unlocks the phone or tablets AT&T lock. For the AT&T unlock pin you will have to request for AT&T unlock code and once you receive the code just enter the code in your device to unlock your phone.
Some Briefing before you start the AT&T unlock
- Request Unlock Code First – Visit https://www.att.com/deviceunlock to request unlock code from AT&T. Just read the requirements carefully and then you can enter the AT&T Mobile Device Unlock Code. The unlock code might take up to 5 working days to reach you. You can check the status of your unlock code also the AT&T website.
- Check for your device to be AT&T branded device – You can request an AT&T unlock code only if your device is AT&T branded device. So, initially make sure your device is AT&T branded device.
- Instructions should be followed carefully – If the unlock is entered incorrectly too many times, the device will get locked on AT&T network. So, make sure you read the instructions carefully and work according to it only.
Lumia 900 AT&T Unlock Method
- The first step to start Lumia 900 AT&T unlock free is to request the pin from AT&T.
- Once you receive the unlock code by email, the main procedure starts. But make sure you follow instructions carefully as 10 unsuccessful attempts on your Lumia 900 will lock you phone permanently.
- Insert non-AT&T carrier SIM card on your Lumia 900 to unlock AT&T free.
- Enter “Unlock PIN” displays.
- Power off the device and remove non-AT&T SIM card and replace with the AT&T SIM card on your Lumia 900 to unlock AT&T xda.
- Power the device back on and it will be unlocked.
Unlock Lumia 900 AT&T
Once you have done this, your Nokia Lumia 900 smartphone is unlocked on AT&T network ebay. Now you can use your Nokia Lumia smartphone on other network carriers as well. This way you will get your nokia lumia 1020 at&t unlock code as well.