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  2. SIM lock - Wikipedia

    en.wikipedia.org/wiki/SIM_lock

    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 ...

  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 4-8 ...

  4. Mobile device management - Wikipedia

    en.wikipedia.org/wiki/Mobile_device_management

    Mobile device management (MDM) is the administration of mobile devices, such as smartphones, tablet computers, and laptops. MDM is usually implemented with the use of a third-party product that has management features for particular vendors of mobile devices. Though closely related to Enterprise Mobility Management and Unified Endpoint ...

  5. Rooting (Android) - Wikipedia

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

    Rooting (Android) Rooting[1] 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 ...

  6. SIM card - Wikipedia

    en.wikipedia.org/wiki/SIM_card

    A typical SIM card (mini-SIM with micro-SIM cutout) T-Mobile nano-SIM card with NFC capabilities in the SIM tray of an iPhone 6s cell phone A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone ...

  7. Factory reset - Wikipedia

    en.wikipedia.org/wiki/Factory_reset

    Factory Reset Protection (FRP) is a security feature implemented in Android devices starting from Android 5.1 Lollipop and later. Its purpose is to prevent unauthorized access to a device that has been lost, stolen, or reset to factory settings. If the user does not recall the Google account information, alternative methods such as FRP bypass ...

  8. Samsung Galaxy A53 5G - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_A53_5G

    The phone was announced on 17 March 2022 at Samsung Galaxy Unpacked event alongside the Galaxy A33 5G and Galaxy A73 5G. [6][7][8] Galaxy A53 5G Phone's price is $449 for a 128 GB model. The size of the screen is 6.5-inch which runs on Samsung 's Exynos 1280 processor. Galaxy A53 has quad-camera system featuring 64 MP main camera with 32 MP ...

  9. International Mobile Equipment Identity - Wikipedia

    en.wikipedia.org/wiki/International_Mobile...

    The International Mobile Equipment Identity (IMEI) [1] is a numeric identifier, usually unique, [2][3] for 3GPP and iDEN mobile phones, as well as some satellite phones. It is usually found printed inside the battery compartment of the phone but can also be displayed on-screen on most phones by entering the MMI Supplementary Service code *#06 ...

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