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How to Unlock LG C900B Optimus Quantum

CellUnlocker How Tos
By Cellunlockernet10:24 pm September 23, 2011

This is a tutorial and instructions on how you can unlock your LG C900B Optimus Quantum by Unlock Code to work on any GSM network.

The new LG C900B Optimus Quantum has a 480 x 800 pixel resolution with over 15 million colors. The LG C900B Optimus Quantum works with a 1GHz Snapdragon processor and with Microsoft Windows Phone 7 OS.  The dimensions are about 119.5 mm in height, 59.5 mm in width and 15.2 mm in depth and weighs about  176 g. The LG C900B Optimus Quantum is one of the thinnest and lightest Smartphones yet. A Gesture button is located on the left side of the handset just under the volume rocker, while the 3.5mm handsfree port, micro USB connector (neatly hidden by a slide back panel) and power/screen lock key are placed on top. There is also a 5 megapixel camera with 720p video capture. Cellunlocker.net is proud to announce we are unlocking the LG C900B Optimus Quantum fast and easy.


Cellunlocker.net is proud to announce we can Unlock the LG C900B Optimus Quantum to any GSM Network fast and easy!

Freeing the network of your phone fast and easy with https://www.cellunlocker.net

Are you receiving “SIM network unlock PIN” ? Unlock it now!

*Note: if you have previously tried to use a faulty code to unlock this device make sure you have enough attempts to enter the code*

After you have unlocked, it is permanently unlocked even after upgrading the firmware.

Once you unlock your LG C900B Optimus Quantum device, you can change to any GSM Carrier.

Simply enter an unlock code to unlock it. You can get the unlock code HERE

We can eliminate the “Network locked”, “enter network pin” or “network code” or “no SIM card allowed” message by sending you an unlock code email

Once you place your order, we will send you via email:

1. LG C900B Optimus Quantum Unlock code
2. LG Phone Unlocking instructions

We require your IMEI number. You can find this by pressing *#06# on your phone as if you are making phone call.

Your IMEI number is always 15-17 digits long.

Once you receive your Unlock Code from us by email, simply follow the instructions below and your phone will be free to use on any GSM network.

LG C900B Optimus Quantum Unlocking Instructions:

1. Turn on phone with not allowed SIM card
2. Type 2945#*900#
3. The phone will ask you to input the unlock code
4. Device is now unlocked!

* Some models may require a service provider code (sp code)

We also provide you with all the unlock codes you need such as the network lock, service provider lock, NCK, NSCK, SPCK, CPCK, SIMCK,

UNLOCK MY LG C900B Optimus Quantum NOW!

Reasons to remote unlock your LG C900B Optimus Quantum with Cellunlocker.net

* If you are travelling, buy a local SIM card and save on roaming fees
* The resell value of the LG device will increase significantly as it is available to more carriers.
* Easily switch between SIM card, using the same phone.
* Unlock your phone from the comfort of your own home
* You never send your phone to anybody.
* No complicated software, or cable, just simply enter the unlock code we send you
* There is absolutely no risk of damaging your LG C900B Optimus Quantum by unlocking it.
* Very easy, no technical experience necessary.
* The phone is permanently unlocked, even after updates
* Warranty will not be voided
* 100% Guaranteed, if we cannot get you your unlock code we will refund you no questions asked


  1. Craig Macintyre

    When I turn on the phone, go to the phone menu and type in the 2945#*900# nothing happens – what is wrong?

    • cellunlocker

      Hi there you need to turn your phone on with a non accepted simcard to prompt you for the unlock code.

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