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For Firmware Developers

While mobile phones have come to a long journey over the years, There's one thing that hasn't changed yet. Whatever the sophisticated mobile phone on your hand, you have to insert a physical SIM card which your prefered service carrier provided in order to get its service. You have to go to the service provider store to get a SIM card for the mobile service or if you have ordered it over the internet, you would have to wait a few days for your card to arrive in the mail and need to search paper clip to take out your sim card from the tiny slot.


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