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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.
A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) 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 devices (such as mobile phones and laptops).
Mobile phone charger plugs. From left to right: Samsung proprietary charging plug, Micro-B plug, Nokia charger plug used on the E71, Nokia Pop-Port. Universal charger or common charger refers to various projects to standardize the connectors of power supplies, particularly for battery-powered devices.
The SIM securely stores the service-subscriber key (IMSI) and the K i used to identify and authenticate the user of the mobile phone. The SIM card allows users to change phones by simply removing the SIM card from one mobile phone and inserting it into another mobile phone or broadband telephony device, provided that this is not prevented by a ...
The Samsung Galaxy A series is a line of low-range to mid-range (and previously premium mid-range before 2022) Android smartphones and tablets manufactured by Samsung Electronics as part of their Galaxy line. The first models in the series were the first-generation Galaxy A3 and Galaxy A5, announced on October 31, 2014 and released in December ...
Dual SIM standby phones allow both SIMs to be accessed by using time multiplexing. When one SIM is in active use, for example on a call, the modem locks to it, leaving the other SIM unavailable. Older examples of dual-SIM standby phones include the Samsung Galaxy S Duos, [23] the Sony Xperia M2 Dual, [24] and the iPhone XS, XS Max and iPhone XR ...
The Samsung Galaxy A13 is an Android smartphone manufactured by Samsung Electronics. [ 7 ] [ 8 ] The 4G LTE model was announced on 4 March 2022 [ 9 ] and the 5G model was announced on 2 December 2021.
The Samsung Galaxy A22 is a mid-range Android-based smartphone developed and manufactured by Samsung Electronics as a part of Galaxy A series. The phone was first released on 24 June 2021. The phone comes with a triple rear camera setup and a 90 Hz display. The battery has 5000 mAh, which is 62% bigger than the battery of the iPhone 13 Pro. [1]