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Here I have Huawei P Smart and let me show you how to set up the sim lock and then let
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me show you how to deactivate the sim lock and how to change your PIN
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So at the very beginning let's start by using the following home screen
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Find and select the settings, scroll down and here you have to find and choose security
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and privacy. Then tap more key and choose set sim lock. Here you have to decide either you would like to set the sim lock on the first or on the
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second sim card if you have two sim cards inserted. In my case let me use the first one
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Let's choose lock sim card. Here you need to enter your old PIN to confirm it
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Tap OK. As you can see right now my device required the PIN
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You can also choose change sim PIN if you would like to. So you have to enter your old PIN
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And now you have to enter your new one. So it could be four zeros in my case, really simple one
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OK tap OK and that's it. You just change your PIN. You can also deactivate the PIN by using the lock sim card switcher again
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Let's enter the PIN to confirm it. Tap OK and that's it
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