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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 ...
A mobile phone may be PIN protected. If enabled, the PIN (also called a passcode) for GSM mobile phones can be between four and eight digits [41] and is recorded in the SIM card. If such a PIN is entered incorrectly three times, the SIM card is blocked until a personal unblocking code (PUC or PUK), provided by the service operator, is entered. [42]
A typical SIM card (mini-SIM with micro-SIM cutout) 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 devices (such as mobile phones and laptops).
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.
3. Carfax. Although a comprehensive VIN check from Carfax requires a fee, you can still snag free information on some issues regarding used cars. These include airbag issues, open recalls, flood ...
Jambonet, an important Kenyan ISP, is a subsidiary of Telkom Kenya. It also offers mobile GSM voice and high speed internet services under the Telkom brand, in which it is the 3rd in market share after Safaricom and Airtel Kenya. [4] In 2018, it was announced [5] that Airtel Kenya was considering a merger with Telkom Kenya. In March 2018, the ...
Unstructured Supplementary Service Data (USSD), sometimes referred to as "quick codes" or "feature codes", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator's computers.
Download QR code; Print/export Download as PDF; Printable version; ... Pin Unlock Key or personal unblocking code (PUC), a code used in GSM mobile phones; PUK welding