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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.

3. eSIM - Wikipedia

   en.wikipedia.org/wiki/ESIM

   An eSIM (embedded SIM) is a form of SIM card that is embedded directly into a device as software installed onto a eUICC chip. First released in March 2016, eSIM is a global specification by the GSMA that enables remote SIM provisioning ; end-users can change mobile network operators without the need to physically swap a SIM from the device.

4. eUICC - Wikipedia

   en.wikipedia.org/wiki/EUICC

   eUICC can refer to any implementation or application of the eUICC standards in an eSIM device. Each implementation of eUICC includes software code, a processor to emulate the software, non-volatile memory used to store the unique identifiers and cryptographic keys that are part of a SIM profile, and a bus interface to communicate the SIM profile to the mobile device. eUICC standards specify ...

5. Samsung U750 Alias 2 - Wikipedia

   en.wikipedia.org/wiki/Samsung_U750_Alias_2

   The Samsung SCH-U750, marketed as Samsung Alias 2 and also as Samsung Zeal, was a cell phone made by Samsung. The phone was only available in metallic gray. It featured a dual-hinge design that could be opened in portrait or landscape style. The Alias 2 featured an E Ink-based keyboard. [1]

6. Universal integrated circuit card - Wikipedia

   en.wikipedia.org/wiki/Universal_integrated...

   In 2G networks, the SIM card and SIM application were bound together, so that "SIM card" could mean the physical card, or any physical card with the SIM application. In a GSM network, the UICC contains a SIM application and in a UMTS network, it contains a USIM application. A UICC may contain several applications, making it possible for the ...

7. Computer case screws - Wikipedia

   en.wikipedia.org/wiki/Computer_case_screws

   Less often, the standoff has a female thread in both ends and a second screw is used to attach it to the case. Some standoffs use the M3 female thread (which faces the motherboard) instead of #6-32 UNC, and on a rare occasion a mixture of types can be used in the same case. All-metric standoffs are stated as threading x hex length x threaded ...