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  • What are the classification of sim cards?
    What are the classification of sim cards? Aug 18,2020
    The SIM (= Subscriber Identity Module) card identifies the user in the network. All GSM-based phones use the same size of chip, but the plastic frame around it, comes in 3 different sizes: Mini SIM (= 2FF): 25 x 15 mm. This used to be the standard for many years from 1996 and still is the most common size around. Micro SIM (= 3FF): 15 x 12 mm. Beginning with iPad and the iPhone 4 in 2010, this sma...
  • What is a SIM card?
    What is a SIM card? Sep 05,2020
    What it does, how it works and why your phone needs one? Although smartphone makers around the world spend boatloads of dollars on making their devices feel different and unique, it’s rather ironic that all of them share a single component that’s critical to making them work. That component is commonly known as a SIM card, even though there are a variety of different versions. And that SIM, is cri...
  • How to insert a Sim Card
    How to insert a Sim Card Sep 10,2020
    Greeso plans use what’s called a SIM card to identify you and make sure you’re getting the service you need. You may already know what a SIM card is, and its importance. In short, without it, it’s impossible to make calls or access the internet when not connected to Wi-Fi. It’s also the only way we can identify your phone on our network. If you’ve bought a new SIM card or phone, you need to k...
  • What are the difference between 2G,3G,4G, LTE and 5G SIM CARDS?
    What are the difference between 2G,3G,4G, LTE and 5G SIM CARDS? Nov 10,2020
    As we all know, the 2/3/4G/LTE SIM cards are wildly used in our life,even 5G is coming to some morden city’s people.Today we are about to tell the difference between 2G,3G,4G and LTE SIM CARDS? 2G: The second-generation mobile phone communication technical specifications, with digital voice transmission technology as the core. Generally defined as the inability to directly transmit information suc...
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