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See also: added a similar case of 'discontinuation bricking`' or 'app-dependent hardware'
 
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==See also==
==See also==
{{Ph-C-SA}}
 
* '''Pencil by FiftyThree''' (2013–2019) was a Bluetooth active stylus sold by FiftyThree, Inc., designed to work with their Paper drawing app for iPad. Its key features — palm rejection, eraser, and Blend — relied entirely on Bluetooth integration with the Paper app via a proprietary SDK. FiftyThree discontinued its hardware business in 2016, and was acquired by [[WeTransfer]] in August 2018. In 2019, WeTransfer discontinued support for the Pencil in the Paper app, reducing the device to a basic passive stylus. The device's active features were never recoverable through third-party means. This is an early example of active hardware rendered functionally downgraded by a software decision made after purchase, without recourse for the consumer.


==References==
==References==