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The careful organization of these components ensures that the device not only runs smoothly after an update or restore but also maintains security by verifying the integrity of the firmware files. The inclusion of SHSH blobs, which are required for validating firmware restoration, further demonstrates the controlled environment that Apple ...
SHSH blobs are created by a hashing formula that has multiple keys, including the device type, the iOS version being signed, and the device's ECID. [5] [non-primary source needed] When Apple wishes to restrict users' ability to restore their devices to a particular iOS version, Apple can refuse to generate this hash during the restore attempt, and the restore will not be successful (or at ...
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Firmware hacks usually take advantage of the firmware update facility on many devices to install or run themselves. Some, however, must resort to exploits to run, because the manufacturer has attempted to lock the hardware to stop it from running unlicensed code. Most firmware hacks are free software.
The most common data recovery scenarios involve an operating system failure, malfunction of a storage device, logical failure of storage devices, accidental damage or deletion, etc. (typically, on a single-drive, single-partition, single-OS system), in which case the ultimate goal is simply to copy all important files from the damaged media to another new drive.
iOS 12 put a major focus on improving the performance of the operating system, especially on older iOS devices like the iPhone 6. Several areas that were focused on were the keyboard, made to appear up to 50% faster; app launch times, improved to be up to 40% faster; and the action to slide up to take a photo, made up to 70% faster. [84]
iOS 17 is the seventeenth major release of Apple's iOS operating system for the iPhone.It is the direct successor to iOS 16.It was announced on June 5, 2023, at Apple's annual Worldwide Developers Conference alongside watchOS 10, iPadOS 17, tvOS 17 and macOS Sonoma.
Time services include support for time zone and daylight saving fields, which allow the hardware real-time clock to be set to local time or UTC. [55] On machines using a PC-AT real-time clock, by default the hardware clock still has to be set to local time for compatibility with BIOS-based Windows, [ 52 ] unless using recent versions and an ...