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  2. SIM lock - Wikipedia

    en.wikipedia.org/wiki/SIM_lock

    A SIM lock, simlock, network lock, carrier lock or ( master) subsidy lock is a technical restriction built into GSM and CDMA [1] mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific countries and/or networks. This is in contrast to a phone (retrospectively called SIM-free or ...

  3. Personal unblocking key - Wikipedia

    en.wikipedia.org/wiki/Personal_unblocking_key

    A personal unblocking key ( PUK ), sometimes called personal unblocking code ( PUC ), is used in SIM cards to reset a personal identification number (PIN) that has been lost or forgotten. Most mobile phones offer the feature of PIN protection. After switching on the phone, if the PIN security function is active, the user is required to enter a ...

  4. Rooting (Android) - Wikipedia

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

    Rooting (Android) Rooting is the process by which users of Android devices can attain privileged control (known as root access) over various subsystems of the device, usually smartphones and tablets. Because Android is based on a modified version of the Linux kernel, rooting an Android device gives similar access to administrative ( superuser ...

  5. Samsung Galaxy A13 - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_A13

    The Samsung Galaxy A13 is an Android smartphone manufactured by Samsung Electronics. [6] [7] The 4G LTE model was announced on 4 March 2022 [8] and the 5G model was announced on 2 December 2021. The phone has a quad-camera (triple for the 5G verison) setup with a 50 MP main camera, a 6.6 (6.5 for the 5G verison) in (175mm) Full HD+ (HD+ for the ...

  6. Dual SIM - Wikipedia

    en.wikipedia.org/wiki/Dual_SIM

    Dual SIM. A modern Samsung Galaxy phone with two SIM card slots. It uses nano-SIM instead of the normal sized SIM. Some mobile phones support use of two SIM cards, described as dual SIM operation. When a second SIM card is installed, the phone may allow users to switch between two separate mobile network services manually, have hardware support ...

  7. Samsung Galaxy S7 - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_S7

    The Samsung Galaxy S7, Samsung Galaxy S7 Edge and Samsung Galaxy S7 Active are Android -based smartphones manufactured, released and marketed by Samsung Electronics. The S7 series serves as the successor to the Galaxy S6, S6 Edge, S6 Edge+ and S6 Active released in 2015. The S7 and S7 Edge were officially unveiled on 21 February 2016 during a ...

  8. SIM card - Wikipedia

    en.wikipedia.org/wiki/SIM_card

    SIM cards are identified on their individual operator networks by a unique international mobile subscriber identity (IMSI). Mobile network operators connect mobile phone calls and communicate with their market SIM cards using their IMSIs. The format is: The first three digits represent the Mobile country code (MCC).

  9. Samsung Galaxy Note 3 - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_Note_3

    USA. 0.9 W/kg (head) 1.25 W/kg (body) Website. Official website. The Samsung Galaxy Note 3 is an Android phablet smartphone produced by Samsung Electronics as part of the Samsung Galaxy Note series. The Galaxy Note 3 was unveiled on September 4, 2013, with its worldwide release beginning later in the month. Serving as a successor to the Galaxy ...

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