Unlocking Cell Phones

Most unlocking ways today consist in a code insertion to unlock all networks.
That code is selled on many web sites and is based on IMEI.

I wonder how do they generate the codes, which accessories do they use and if we could do it at home.

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› See More: Unlocking Cell Phones

Here's a cool little article about generating codes to unlocking cellphones. Thought the article is old it could give some insight on how they are still being done today.

How to unlock a cell phone for free and get unlock codes | AskStudent