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  2. Bootloader unlocking - Wikipedia

    en.wikipedia.org/wiki/Bootloader_unlocking

    In addition, some manufacturers prohibit unlocking on carrier locked phones. Although Samsung phones and cellular tablets sold in the US and Canada do not allow bootloader unlocks regardless of carrier status, a service has allowed users on an earlier version to unlock their US/Canadian Samsung phone(s) and/or tablet(s) [18] [19]

  3. SIM lock - Wikipedia

    en.wikipedia.org/wiki/SIM_lock

    Mobile network code (MNC; e.g., AT&T Mobility, T-Mobile, Vodafone, Bell Mobility etc.) Mobile subscriber identification number (MSIN; i.e., only one SIM can be used with the phone) Additionally, some phones, especially Nokia phones, are locked by group IDs (GIDs), restricting them to a single Mobile virtual network operator (MVNO) of a certain ...

  4. Outage map: Track AT&T service interruptions in Rochester - AOL

    www.aol.com/outage-map-track-t-interruptions...

    AT&T had more than 73,000 outages this morning, Cricket Wireless had more than 13,000, Verizon had more than 4,000 outages, T-Mobile had more than 1,800 outages and Boost Mobile had about 700 ...

  5. Personal unblocking key - Wikipedia

    en.wikipedia.org/wiki/Personal_unblocking_key

    If the wrong PIN is entered more than three times, the SIM card will become locked. It can be unlocked by entering the PUK code provided by the mobile service provider, [1] which may be available on the SIM card's packaging, the contract, or provided by customer service after identity verification. After the PUK code is entered, the PIN must be ...

  6. List of mobile virtual network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_virtual...

    Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.

  7. Rooting (Android) - Wikipedia

    en.wikipedia.org/wiki/Rooting_(Android)

    SIM unlocking allows a phone that is locked to a certain carrier to be used on a different carrier. The instructions vary per device and carrier, but this might be done by first requesting the carrier to unlock the phone or purchasing an unlock code online. [33]