Project ΠΎΠΏΡΠ±Π»ΠΈΠΊΠΎΠ²Π°Π» Linux and Android, suitable for installation on iPhone 7 and 7+ smartphones in addition to iOS. The project also provides limited support for the iPod Touch 7G and is being ported to various iPhone 6, 8, X, 11 and iPod Touch 6G models. Developments on GitHub.
The builds are in beta testing and do not cover some features, for example, sound, camera, GPU acceleration, making calls through mobile operators are not supported. At the same time, when using the iPhone 7, Wi-Fi, Bluetooth, screen output, multi-touch, power management, I2C, SPI, USB, AIC, NAND Flash, APCIe, DART and the Tristar charge management chip work. Compared to iPhone 7, when using Sandcastle, Wi-Fi, Bluetooth, and multi-touch are not available on iPod Touch 7G.
To remove the protection that binds the device to the Apple firmware, use jailbreak toolkit . Firmware directly from the Flash device and stored using the native APFS file system (a new partition is created), which allows Sandcastle to coexist with iOS. The original firmware from iOS is saved and at any time the user can reboot the device of his choice into an environment with iOS or Android. Instructions for installing Sandcastle are provided in the "README.txt" file located inside the downloads (after installing checkra1n, you need to copy the setup.sh, loadlinux.c and Android.lzma files to your phone, run setup.sh, build loadlinux and run "loadlinux Android.lzma dtbpack").
A modified driver is used to access the APFS file system , extended with support for parallel mounting of subsections and the ability to work with compressed files. Despite the fact that the APFS implementation used supports write mode, this mode is still experimental and partitions are mounted in read-only mode by default (data in the Android environment is not saved and is lost after a restart).
The project uses vanilla linux kernel. To build a Linux system environment . Android environment based on platform . Default home screen and the messaging program Signal. To install Android applications, it is proposed to use the adb utility. Java APKs are supported. ARMv8 executable APKs require a rebuild (ARMv7 packages are not supported).
The goal of the development is to give iPhone users the freedom to choose a platform and get rid of the restrictions and bindings to the equipment imposed by Apple. According to the developers of the project, the owner of the equipment is the user who bought the phone, and not Apple, so he is free to install any operating systems on the devices.
Development is carried out by a team that developed the project ten years ago and now working for the company , which offers a cloud service with iOS virtual environments for developers. Apple last year against Corellium for bypassing iOS protection and device binding (jailbreak).
Source: opennet.ru