A SIM card, or Subscriber Id Module, is a small card that shops details about a subscriber to a cellular community. This data contains the subscriber’s telephone quantity, account particulars, and different information. SIM playing cards are used to establish subscribers to the community and to permit them to entry providers equivalent to voice calls, textual content messages, and information providers.
In some instances, a SIM card might turn out to be locked. This may occur if the SIM card is inserted right into a telephone that isn’t approved to make use of it, or if the SIM card is misplaced or stolen. A locked SIM card can’t be used to entry any providers on the community.