How the SIM card works ? SIM types Explained in Sinhala

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How does a smartphone SIM card work? Why Do Cellphones Need a SIM Card? what does a sim card do for iphone what does a sim card do in a smartphone what does a sim card hold what is a sim card used for do i need a sim card what does a sim card do verizon does a sim card hold pictures what is a sd card sim card sizes template sim card sizes iphone sim card versions sim card types gsm standard sim card phones standard sim card android phones types of sim cards wiki types of sim cards in Sri Lanka Sinhala Tech Gadget Phone Computer Laptop Technology Review and Explain by Chanux Bro Sinhala Geek Show

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