Apple: Difference between revisions

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iOS devices only support full security mode. The device checks for a cryptographic "[https://theapplewiki.com/wiki/APTicket ticket]," which are tied to the OS version and CPU serial number. These are provided by a server, which only provides them for the latest version (with very specific exceptions). The device refuses to boot if the ticket does not match. [https://theapplewiki.com/wiki/Firmware_downgrading Workarounds] exist, but with major caveats that are not viable for most users.<ref>https://en.wikipedia.org/wiki/SHSH_blob</ref>

~~Users often complain~~ of new ~~OS versions slowing down their device~~. Once a new version is installed, there is no opportunity to go back. This also restricts the user's choice to jailbreak the device, as the latest version naturally has patches for the latest jailbreak exploits. App developers also require access to earlier iOS versions to test that their app works correctly. The alternative, Xcode's iOS Simulator, is not a complete replacement for real hardware, as it does not have all features of a physical device.<ref>https://contextqa.com/test-on-ios-emulators-simulators/</ref> Instead, app developers are forced to purchase several test devices, and remember to ''never'' allow them to update.

==== Class Action ====

Apple was the defendant of a class-action lawsuit with claims dating back to 2017 where users noticed their phones were being artificially slowed down. Apple agreed to settle the lawsuit for up to 500 million.<ref>CNET Article: https://www.cnet.com/tech/mobile/apple-starts-sending-out-iphone-batterygate-settlement-payments-what-to-know/</ref> Apple claimed that this change was to benefit users who have old failing batteries, and that it wasn't for planned obsolescence. They later published software updates and an article explaining how users can opt out of this new "performance management" mode.<ref>Apple battery performance management https://support.apple.com/en-us/101575</ref>

Once a new OS version is installed, there is no opportunity to go back. This also restricts the user's choice to jailbreak the device, as the latest version naturally has patches for the latest jailbreak exploits. App developers also require access to earlier iOS versions to test that their app works correctly. The alternative, Xcode's iOS Simulator, is not a complete replacement for real hardware, as it does not have all features of a physical device.<ref>https://contextqa.com/test-on-ios-emulators-simulators/</ref> Instead, app developers are forced to purchase several test devices, and remember to ''never'' allow them to update.

==Parts availability==

Many parts are not available directly from Apple. Those that are available directly from Apple may be more expensive than paying Apple to repair your device. Parts available to certified repair centers are extremely limited. Apple does not stock current generation iPad parts within GSX (See Certified Repair Centers). A limited selection of iPad parts are available from iFixit, however this can exclude some flex PCBs necessary for repairing headphone jacks.

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 iOS devices only support full security mode. The device checks for a cryptographic "[https://theapplewiki.com/wiki/APTicket ticket]," which are tied to the OS version and CPU serial number. These are provided by a server, which only provides them for the latest version (with very specific exceptions). The device refuses to boot if the ticket does not match. [https://theapplewiki.com/wiki/Firmware_downgrading Workarounds] exist, but with major caveats that are not viable for most users.<ref>https://en.wikipedia.org/wiki/SHSH_blob</ref>
-Users often complain of new OS versions slowing down their device. Once a new version is installed, there is no opportunity to go back. This also restricts the user's choice to jailbreak the device, as the latest version naturally has patches for the latest jailbreak exploits. App developers also require access to earlier iOS versions to test that their app works correctly. The alternative, Xcode's iOS Simulator, is not a complete replacement for real hardware, as it does not have all features of a physical device.<ref>https://contextqa.com/test-on-ios-emulators-simulators/</ref> Instead, app developers are forced to purchase several test devices, and remember to ''never'' allow them to update.
+==== Class Action ====
+Apple was the defendant of a class-action lawsuit with claims dating back to 2017 where users noticed their phones were being artificially slowed down. Apple agreed to settle the lawsuit for up to 500 million.<ref>CNET Article: https://www.cnet.com/tech/mobile/apple-starts-sending-out-iphone-batterygate-settlement-payments-what-to-know/</ref> Apple claimed that this change was to benefit users who have old failing batteries, and that it wasn't for planned obsolescence. They later published software updates and an article explaining how users can opt out of this new "performance management" mode.<ref>Apple battery performance management https://support.apple.com/en-us/101575</ref>
+Once a new OS version is installed, there is no opportunity to go back. This also restricts the user's choice to jailbreak the device, as the latest version naturally has patches for the latest jailbreak exploits. App developers also require access to earlier iOS versions to test that their app works correctly. The alternative, Xcode's iOS Simulator, is not a complete replacement for real hardware, as it does not have all features of a physical device.<ref>https://contextqa.com/test-on-ios-emulators-simulators/</ref> Instead, app developers are forced to purchase several test devices, and remember to ''never'' allow them to update.
 ==Parts availability==
 Many parts are not available directly from Apple. Those that are available directly from Apple may be more expensive than paying Apple to repair your device. Parts available to certified repair centers are extremely limited. Apple does not stock current generation iPad parts within GSX (See Certified Repair Centers). A limited selection of iPad parts are available from iFixit, however this can exclude some flex PCBs necessary for repairing headphone jacks.