given rise to the right to repair movement, aimed at giving users cheaper options for repairing their phones. Apple has lobbied against right to repair legistation. Multiple jurisdictions aim to introduce right to repair laws, including the EU, U.K., and U.S. In the past, Apple bricked iPhone 6 models after their home buttons were replaced, displaying an Error 53 message; Apple called this a bug, and released an update to address the issue. On iPhones with a Touch ID sensor, the home button cannot be replaced by users or independent repair shops without losing Touch ID functionality, since Apple has not made their calibration tool public. In more recent models, starting with the iPhone XR, Apple displays warnings in the Settings app if the battery, display, or camera are replaced by a third party. Additionally, some features are disabled when a part labelled "non-genuine" is detected, like True Tone, or the battery health measurement. iFixit notes that a proprietary, cloud-linked System Configuration tool is required to "complete" a part repair, meaning that even replacing a genuine part with another genuine part will fail Apple's "genuine parts" check unless said tool is used. In 2022, Apple rolled out a self-service repair program, allowing any user to buy parts, rent repair tools from Apple, and obtain repair manuals. The program received a degree of praise by iFixit and repair advocates, who also critically noted that Apple maintains control over the parts supply. Privacy Tracking prevention Apple introduced App Tracking Transparency (ATT) with iOS 14.5 in April 2021. ATT requires apps to ask for explicit permission before being allowed to track the user across other apps and websites. If the user refuses, the app cannot access Apple's Identifier for Advertisers (IDFA), an identifier used to serve personalized ads. ATT does not prevent personalized ads that are based on the user's behavior within the app itself, The feature has been criticised by some as anti-competitive, including Facebook, whose shares fell by 26% after its rollout. Apple exempts their own apps from their anti-tracking measures, which has led to anti-trust investigations by the French and German governments. Location tracking controversy In July 2010, Apple claimed that it collected iPhone users' GPS coordinates and nearby Wi-Fi networks twice a day; a Wall Street Journal investigation found that Android sent this data "several times an hour". In September 2010, forensic expert Christopher Vance discovered a hidden unencrypted