如何在 Android 手机上安装其它操作系统

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如何解锁 Android 手机上的开发者选项

如何解锁 Android 手机的引导加载程序（Bootloader / BL 锁）

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A [link|https://en.wikipedia.org/wiki/Custom_ROM|custom ROM] (aka aftermarket firmware) is a modified version of an existing operating system, that is not officially supported by the manufacturer of a device. Some custom ROMs are based on existing mobile OSs, like Android, and some are based on PC operating systems, such as [link|https://github.com/manjaro-libhybris/image-ci|Manjaro] or [link|https://ubports.com/|Ubuntu]. They’re different from devices that use stock firmware in that they can offer features and enhancements not found in stock versions of Android, do not contain bloatware, and do not depend on the devices manufacturer for software updates.

Some custom ROMs, like GrapheneOS and ProtonAOSP, offer a [link|https://en.wikipedia.org/wiki/WebUSB|WebUSB]-based installer that is easier to use for most users, but in this guide, I will be covering the command-line based installation as it is the more traditional and universal approach to installing custom ROMs.

== Warnings ==
* Unlocking the bootloader will reset your phone, so make sure you have all your data backed up!
* This process may void your warranty with some manufacturers.
* A modified device will trip the [link|https://developer.android.com/google/play/integrity|Play Integrity API (formerly SafetyNet Attestation API)] which can cause some services like GPay to stop working.
* This will make your device vulnerable against hackers with physical access to your device, so do not unlock the bootloader on a device that you intend to carry state/company secrets on.
* Flashing a custom ROM can be risky and may cause unexpected issues or even brick your device. It is recommended to only flash a custom ROM if you are experienced with Android.
* Always use caution and read the instructions carefully when unlocking your device's bootloader or flashing a custom ROM. Improperly following the steps can cause irreversible damage to your device.
* Before flashing a custom ROM, make sure it is compatible with your device and check for any known issues or bugs reported by other users.
* If you encounter any issues during the unlocking or flashing process, do not hesitate to seek help from experienced users on forums or support channels provided by the custom ROM developer.

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定制 ROM（又称售后固件）是对现有操作系统的修改版本，不受设备制造商的官方支持。有些定制 ROM 基于现有的移动操作系统，如 Android，有些则基于 PC 操作系统，如 [link|https://github.com/manjaro-libhybris/image-ci|Manjaro] 或 [link|https://ubports.com/|Ubuntu]。它们与使用原版固件的设备不同，因为它们可以提供原版安卓系统所没有的特性和增强功能，不包含臃肿自带软件，也不依赖于设备制造商的软件更新。

有些定制 ROM，如 GrapheneOS 和 ProtonAOSP，提供了基于 [link|https://en.wikipedia.org/wiki/WebUSB|WebUSB] 的安装程序，对大多数用户来说更容易使用，但在本指南中，我将介绍基于命令行的安装，因为它是安装定制 ROM 的更传统、更通用的方法。

== 警告 ==
* 解锁 BootLoader 将重置手机，因此请确保您备份了所有数据！
* 此过程可能会导致某些制造商的保修服务失效。
* 修改后的设备会触发[link|https://developer.android.com/google/play/integrity|Play Integrity API（前身为 SafetyNet Attestation API）]，可能导致 GPay 等服务停止工作。
* 这将使你的设备在黑客物理访问你的设备时变得脆弱，所以不要在你打算存储国家 / 公司机密的设备上解锁引导加载器。
* 刷入自定义 ROM 有一定风险，可能会导致意想不到的问题，甚至使设备变砖。建议仅在有丰富 Android 操作经验的情况下才刷入自定义 ROM。
* 在解锁设备的 BootLoader 或刷入自定义 ROM 时，请务必小心谨慎并仔细阅读说明。不正确的步骤可能会对设备造成不可逆转的损坏。
* 在刷入自定义 ROM 之前，确保它与你的设备兼容，并检查其他用户报告的任何已知问题或错误。
* 如果在解锁或刷入过程中遇到任何问题，请不要犹豫，到论坛或定制 ROM 开发商提供的支持渠道向有经验的用户寻求帮助。

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crwdns2936071:01crwdne2936071:0 — 启动进入 BootLoader

如果设备在解锁 BootLoader 后重启了，请再次按住电源键和音量减小键，直到设备重新启动进入到 BootLoader。

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