[root] LiveBoot

LiveBoot is an application designed for rooted Android devices that displays logcat and dmesg outputs during the boot process. This app serves as a visual tool that allows users to monitor their device’s boot-up sequence in real time, making it particularly useful for developers and advanced users who wish to troubleshoot or gain insights into the boot process. Downloading LiveBoot provides a unique way to visualize system logs and messages as they occur.

Upon installation, LiveBoot offers various configuration options to tailor the user experience. Users can select the logcat level, choose the appropriate buffer, and format the output according to their preferences. This allows for a customized viewing experience that can fit the user’s needs. Additionally, the app can display dmesg output, which provides kernel-related messages that are critical during the boot process. The configuration options also include the ability to specify how many lines should be visible on the screen and whether word-wrap should be employed for better readability.

One of the notable aspects of LiveBoot is its transparency feature, which allows the output to overlay the existing boot animation. This functionality enhances the visual appeal of the boot process, as users can see system messages against the backdrop of their chosen animation. The feature is particularly striking and adds a layer of sophistication to the boot experience.

To ensure that users can test their configurations without needing to reboot their devices, LiveBoot includes a built-in test mode. This mode allows users to see how their settings will appear during boot, although it’s important to note that the lines displayed in this mode may be limited and do not fully mimic the actual boot-time behavior. The test feature ensures that users can make adjustments and verify their settings quickly before the next reboot.

LiveBoot operates only after the data partition of the device is mounted. This means that if a user needs to enter a decryption key or pattern during boot, the LiveBoot output will not appear until this step is completed. This aspect of the app is essential to understand for users who may be expecting to see the output immediately.

The app does carry a low risk of causing bootloops, though such occurrences are rare. If a bootloop does happen, users can remedy the situation by removing the app's APK or deleting the associated script file through a recovery environment. This ensures that users have a way to regain access to their devices without extensive troubleshooting.

LiveBoot requires root access to function correctly, specifically necessitating SuperSU version 2.40 or newer, or a recent version of Magisk. While the app attempts to work with other rooted setups that support init.d, this is not officially supported, and users may encounter variability in performance.

For those interested in enhanced features, there is an option to upgrade to the Pro version through an in-app purchase. The Pro version unlocks additional features, including the transparency option and increased flexibility in logcat buffer and format selection. Users who have previously purchased paid variants of the old live logcat or live dmesg boot animations may also gain access to Pro mode. Moreover, the app provides a button for users who prefer to enable Pro mode without making a purchase.

The script functionality is another advanced feature of LiveBoot. If a specific script file exists in the system directories, it will run instead of the standard logcat and dmesg outputs. The output from this script will be shown in white for standard output and red for error output, allowing users to customize what is displayed during the boot process.

LiveBoot is compatible with Android versions 5.0 and newer, although performance may vary depending on the device and firmware. Even if the app functions correctly during testing, there is no guarantee that it will continue to work seamlessly after firmware updates, which users should consider before making a decision to upgrade to Pro.

With its array of features designed for a specific user base, LiveBoot provides a unique tool for those who require real-time insight into their device's boot process. The combination of customization options, testing capabilities, and advanced logging features makes it a valuable application for rooted Android users seeking to enhance their understanding of their device's performance during startup.

For further information and discussions about LiveBoot, users can refer to the official app thread on XDA-Developers.com.