Q:

How do you make a SIM card work in another phone?

A:

Quick Answer

If a cell phone doesn't have a SIM lock, insert the SIM card into the new phone and it should work so long as the phone supports the carrier's frequency band. Most cell phones have a SIM lock that prevents access to the network if the SIM card belongs to another carrier. If inserting a new SIM card prompts a request for a carrier code, the phone is SIM locked.

Continue Reading
How do you make a SIM card work in another phone?
Credit: ra-photos E+ Getty Images

Full Answer

Different carriers operate in different frequencies, and the internal antennae of cell phones are normally compatible with a limited amount of frequencies. Most modern smart phones are compatible with multiple frequencies, and the same phone frequently comes in different versions based on the frequency bands it supports. Check with the manufacturer and the carrier to verify this information. If the phone requests a carrier code when inserting a SIM card, it means it's SIM locked. Carriers normally provide this information once a customer is out of contract or in good standing with the company for a specific number of days and requests the information. There is no standard procedure to request a carrier unlock code, so check with your carrier. Some carriers do not provide unlock codes at all. Some phones may be unlocked by other procedures without carrier consent.

Learn more about Mobile

Related Questions

  • Q:

    Does a pay-as-you-go SIM card work in a contract phone?

    A:

    A pay-as-you-go SIM card is only usable in a contract phone that uses GSM technology and has been unlocked. To unlock a contract phone, you need the unlock code for your specific model.

    Full Answer >
    Filed Under:
  • Q:

    Will a Verizon phone work if I put a T-Mobile SIM card in it?

    A:

    A Verizon phone can work when using a SIM from a T-Mobile account. The model of phone and the carrier that one is switching to will determine whether moving SIM cards will work properly. Some cards are not compatible with particular services or may require special software on the phone.

    Full Answer >
    Filed Under:
  • Q:

    How can you unlock a SIM card with a PUK code?

    A:

    Obtain the PUK code from the SIM card carrier that came with your SIM pack, from the company website or by calling the service provider’s toll-free number, and key in the code carefully when prompted to unlock the SIM. Obtaining code from the SIM card carrier is the easiest of these methods.

    Full Answer >
    Filed Under:
  • Q:

    How can I ping a cell phone for its location?

    A:

    To ping a cell phone for its location, users must provide the cell-phone carrier with specific information about the phone number, serial number and SIM card number if applicable of the phone and request that the phone be pinged. If the phone returns the ping, technicians can either narrow the location to the nearest cell tower or triangulate a more specific location.

    Full Answer >
    Filed Under:

Explore