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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. Samsung Galaxy Core - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_Core

   Samsung Galaxy Core GT-I8260 single sim card slot model and Samsung Galaxy Core GT-I8262 dual sim card variant are smartphone manufactured by Samsung Electronics that runs on the open source Android 4.1.2 Jelly Bean operating system. Announced by Samsung in early May 2013, [2] the Dual-SIM model has been released in mid-to-late May 2013, and ...

5. Samsung Galaxy A53 5G - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_A53_5G

   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 front camera. [9] Galaxy A53 is the first Samsung's A series device to get 5 years of software updates.

6. 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).

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!