The popular standard protection service providers offer is the Personal Identification Number (PIN). This four-digit code prevents unauthorized access to the SIM card, ensuring data security.
Phone theft is bad enough, but criminals are now targeting SIM cards to access sensitive information, including bank ...
来自MSN1 年
How to lock your SIM on AndroidThis number is located on the packaging your SIM card came in. If you don't have the box, contact your carrier and verify yourself to get the PUK from them. Store your new SIM PIN in one of the ...
[Jason Gin] wanted to reuse the SIM card that came with a ZTE WF721 wireless ... Unfortunately, the terminal has no function to change the PIN and none of the defaults he tried seemed to work.
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