SIM lock

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SIM lock

(Subscriber Identity Module lock) A function in GSM cellphones that restricts the phone's use to a particular cellular carrier (a particular SIM card). SIM locks are used to ensure subscribers finish their service contracts when the phones are heavily subsidized by the carrier. SIM locked phones may be unlocked by entering a code.

Apple's iPhone brought the SIM lock into public view because of its original exclusivity in the U.S. with AT&T. However, iPhones were readily "unlocked" by hackers both in and outside the U.S., not only to use a different carrier, but to customize their appearance and download applications even before Apple debuted its App Store. In addition, Apple allowed the GSM iPhone to be sold without the SIM lock in Australia, Taiwan, Hong Kong and other regions where locked phones were either prohibited or a recipe for marketing failure. See SIM card and iPhone jailbreaking.
References in periodicals archive ?
Subscribers under lockup should also be notified once their devices are eligible for unlocking, the NTC said.
"PTEs that lock devices shall clearly notify customers that their devices are eligible for unlocking at the time when their devices are eligible for unlocking or automatically unlock devices remotely when devices are eligible for unlocking, without additional fee," the circular stated.
There are slight differences in the face unlocking feature between HUAWEI and Apple.
This comes at a time when Apple's iPhone X ditched TouchID entirely and moved to FaceID for phone unlocking. According to analysts with knowledge of the smartphone industry then predicted that Android competitors were at least two years away from reaching the technology utilized inside Apple iPhone X's FaceID.
This is our way to say thank you to our customers for making us the number one phone unlocking website," says a spokesperson for Cellphoneunlock.net.
The authors hope their research, presented at the 10th USENIX Workshop on Offensive Technologies (WOOT '16) in Austin, Texas, will raise the issue of drivers unlocking potentially insecure features before IVI protocols such as MirrorLink are even more widely deployed.
(9) While unlocking cell phones was protected under an exemption to the Digital Millennium Copyright Act (DMCA), in January 2013, the Librarian of Congress eliminated the exemption for cell phone firmware or software, making it illegal to unlock a cell phone.
Mobile phone unlocking is now completely legal, after president Obama signed into law the Unlocking Consumer Choice and Wireless Competition Act in July, allowing consumers to unlock their devices and allowing bulk unlocks of devices.
Putnam's Sons Books for Young Readers, part of Penguin Group (USA), said Friday that it would publish a book written by the Brooklyn trio chronicling the group's ''path to success.'' Unlocking the Truth is signed to the new label The Cherry Party, a division of Sony.
It invalidated all of Apple's claims for the method of unlocking the screensaver by pushing a slider-button across the screen to the right, which has been part of the iPhone since it first arrived on the market in 2007.
Clearly passionate about education, and as Director of the Unlock Foundation, Karrel told the Economist that the name Unlock symbolises the true potential and dynamic impact that Unlocking the gaps of education in rural schools have on the future of children.
The unlocking process is now made easy with Easy Unlock iPhone solution which is a reputed company providing a simple software method for unlocking/ jailbreaking all iPhone models.