unlock bell sim card

[spinnster]

Probably a noob question... But when I'm on my bell profile there's an option to unlock the sim card. What does that mean exactly?? Does the phone get unlocked too?

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[msanford]

In short: no.

Your SIM card has a pre-set code (PIN code). If you activate your code, you will be asked to enter it every time you turn on your phone. For security reasons, you should change it to a new code of your choice that you will remember easily.If your code is active and you enter it incorrectly 3 times in a row, your SIM card will be locked - and you won't be able to use your mobile phone, except for emergency calls, until it is unlocked with a master security code (PUK).

Below is the master security code that will allow you to unlock your device and select a new 4-digit code.