3 ms·

SIM lock is a restriction built into mobile phones, not into SIM cards. It does nothing to prevent SIM card abuse.

• wodenokoto 8y ago
  What? So if I "sim lock" my card, someone else can just insert it into their device and use my minutes?
• smileybarry 8y ago
  No, SIM locks (specifically the pin code kind) program the SIM card to refuse to initialise unless you enter the correct code. It's the actual card that asks for a code, the phone merely forwards the authentication request to the user.
  • krzyk 8y ago
    Popularly sim lock is something different see https://en.m.wikipedia.org/wiki/SIM_lock https://en.m.wikipedia.org/wiki/SIM_lock What you write is more of a PIN lock.
    • jwilk 8y ago
      Non-mobile link: https://en.wikipedia.org/wiki/SIM_lock https://en.wikipedia.org/wiki/SIM_lock