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How to download Serotonin Jailbreak for iOS 16.0 – iOS 16.6.1

Promotion image of Serotonin Jailbreak article.

Serotonin, developed by hrtowii, stands out as a fascinating project to serve as a non/semi-jailbreak solution for 16.0 through 16.6.1, iOS 17 is not supported. Leveraging the KFD exploit and RootHide Bootstrap, it intelligently addresses launchd hooks in the posix_spawnp of SpringBoard. Serotonin then executes its own SpringBoard, using springboardhook to facilitate the loading of various tweaks and ellekit.


Serotonin Jailbreak was released as a TIPA package that can be downloaded and imported into TrollStore 2. Alternatively, use the direct Install to download the app automatically with TrollStore. This feature requires you to enable the URL Scheme from TrollStore Settings. v1.2.1-1 comes with a new UI, but it doesn't work. Use the regular version instead.

What is Serotonin Jailbreak?

Serotonin Jailbreak serves as an advanced SpringBoard tweak injection toolbox tailored for arm64e and arm64 devices operating on iOS 16.0 through 16.6.1. Compatible with a broad range of devices from iPhone XS to iPhone 14, this powerful tool empowers users to seamlessly install jailbreak tweaks, transforming the aesthetics and functionalities of the Lock Screen, Home Screen, and Control Center. Serotonin does not require a jailbroken environment.

This platform functions similarly to KFDmineek, enabling users to leverage Bootstrap from RootHide, ElleKit, and the TrollStore installation method. For Serotonin app usage, make sure your device is operating on one of the mentioned supported versions and has TrollStore installed. Please be aware that Serotonin for iOS 17 is currently not available; however, support for iOS 16.1 and lower was added with the release of the 1.0.1 version.

RootHide's Bootstrap empowers users to apply tweaks to nearly all apps, although it currently lacks support for springboard tweaks, including those affecting the Home Screen, Lock Screen, Control Center, or Status Bar. Nevertheless, you have the option to install apps and jailbreak tweaks designed for system apps, providing configurability directly from the Settings app.

Serotonin app screenshot.

After successfully installing Serotonin Jailbreak, a new icon will appear on your Home Screen. To ensure the smooth operation of the application, make sure your device's developer mode is enabled; failure to do so may hinder the application's launch. It's essential to note that Serotonin is meticulously crafted for compatibility with TrollStore. Avoid attempting to sideload it using alternative IPA installers, as this may result in ineffective installation.

Serotonin provides an automated solution replacing launchd, patching launchd hooks posix_spawnp of SpringBoard, and execs its own SpringBoard with springboardhook.dylib. This streamlined process is designed to activate installed tweaks (such as TrollPad, Atria, BetterCC, etc.) seamlessly through the Sileo package manager and the RootHide's Bootstrap.

The application interface is user-friendly, offering easy access to all features and configuration options. In contrast to KFDmineek, this application enhances user experience with a fresh UI design and additional features, including the ability to reinstall Bootstrap or restore the system.

Within Serotonin's settings panel, users can customize puaf pages, set static headroom, enable verbose boot, display exploitation output, and modify the app interface's appearance. The developer has also included an option to switch to the older graphical interface.

Serotonin Jailbreak was released as an open-source project, and all its files are listed on the corresponding GitHub Repository. The project predominantly employs the C programming language, complemented by some additional files written in Swift, and Objective-C.

Serotonin Jailbreak Logo.

Serotonin Jailbreak Updates

The latest release of Serotonin introduces significant enhancements, including the incorporation of kfund kpf, which supersedes tihmstar's kpf. This modification seamlessly integrates support for arm64 devices and addresses compatibility issues with iPads.

Additionally, the update ensures that switchsysbin functions correctly on versions 16.3.1 and earlier. For users on 16.6b1, it is advised to activate the beta toggle. Furthermore, the release rectifies the M1/2 regression stemming from the previous kpf, ensuring the stability of kbase on these specific devices. Lastly, an exploit picker has been added, accessible through the simple/old UI.

Serotonin Jailbreak has undergone notable enhancements in its recent update. The inclusion of patchfinder, leveraging tihmstar's libpatchfinder ported to iOS as libiospatchfinder, marks a significant stride. This addition not only bolsters the jailbreaking process but also addresses the intricacies of iOS 16.0-16.1.2 and 16.6.1, ensuring seamless functionality through patchfinder.

What's new

  • Fixed memory hogger.
  • Fixed exploit picker.
  • Fixed launchd entitlements.
  • Remove a bunch of unused code.
  • Slight UI changes.

The update further extends its compatibility to all arm64e devices, eliminating the need for device-specific offsets. This improvement guarantees widespread applicability, with support now spanning iOS 16.0-16.6.1—a commendable achievement attributed to haxi0 fork and the contributions of wh1te4ever's kfund. Sincere appreciation is extended to both for their invaluable contributions.

Serotonin Jailbreak Settings and Bootstrap.

Noteworthy adjustments include support for arm64, accompanied by the integration of a boot screen designed to replace the verbose boot. Gratitude is extended to AlfieCG for the image and the palera1n team for the bootscreend source, enhancing the overall user experience.

The visual aspect of Serotonin Jailbreak sees a change in its icon, offering a fresh and updated look. This alteration contributes to the overall aesthetic refinement of the jailbreaking tool.

Looking ahead, there are exciting prospects on the horizon as Serotonin Jailbreak plans to introduce a patchfinder tailored for arm64(e) in subsequent releases. These continuous enhancements underscore the commitment to refining and expanding the functionality of Serotonin Jailbreak, ensuring it remains a reliable and cutting-edge solution for users across various iOS versions and devices.

Serotonin 1.2.1, the latest version of the renowned jailbreaking tool, brings a myriad of enhancements and fixes meticulously crafted to elevate your jailbreaking experience. In this latest release, the developers have prioritized addressing prevalent issues that plagued previous versions, ensuring a smoother and more reliable performance. Notably, efforts have been directed towards optimizing memory usage, rectifying exploit vulnerabilities, and streamlining code to enhance overall stability.

Furthermore, subtle yet impactful changes have been made to the user interface, enhancing user interaction and visual appeal. These refinements contribute to a more polished and intuitive experience, reflecting the developers' commitment to user satisfaction.

Building upon the foundation laid by its predecessors, Serotonin 1.2.0 introduced several noteworthy features aimed at enhancing functionality and versatility. Users will appreciate the improved toggles for reinstalling and uninstalling the jailbreak, as well as the addition of a toggle for hiding confidential information, bolstering privacy and security.

A significant milestone in this release is the inclusion of support for arm64 devices, made possible through the integration of kfund kpf. This expansion of device compatibility not only broadens Serotonin's reach but also addresses previous limitations on iPads and ensures a more inclusive jailbreaking experience.

Moreover, the introduction of an exploit picker with a simplified user interface marks a significant step forward in accessibility and ease of use. Whether you're a novice or seasoned enthusiast, selecting the appropriate exploit has never been more straightforward, thanks to this intuitive addition.

Serotonin 1.1.0 continued this trajectory of innovation, introducing a patchfinder utilizing tihmstar's libpatchfinder, thereby enhancing compatibility across a wider range of iOS versions. This breakthrough technology ensures seamless operation on iOS 16.0-16.1.2 and 16.6.1, catering to the diverse needs of users.

Gone are the complexities associated with device-specific offsets; Serotonin now offers universal support for all arm64e devices, eliminating compatibility concerns and simplifying the jailbreaking process for users across the spectrum.

With the initial release of Serotonin 1.0.1 laying the groundwork for its evolution, users can enjoy an enhanced jailbreaking experience with support for iOS 16.0-16.6.1 and arm64 devices. Combined with features such as a revamped boot screen and updated icon, Serotonin continues to set the standard in the jailbreaking community.

As the developers continue to refine and innovate, users can look forward to further advancements and improvements, guided by their commitment to providing a seamless and empowering jailbreaking solution.

How to install Serotonin Jailbreak IPA

Serotonin can be installed on your device only through the TrollStore or TrollStore 2 IPA installers. When using other tools like Sideloadly, AltStore, Bullfrog Assistant, and Esign the application will not allow you to execute the KFD exploit.

Step 1. Install TrollStore on iOS following how to install TrollStore 2 guide.

Step 2. Download Serotonin TIPA from the link at the top of this page.

Step 3. Open TrollStore 2 from your Home Screen.

Step 4. Import Serotonin TIPA to TrollStore 2.

Step 5. Proceed with the installation process.

Step 6. Open the Settings app and enter the Privacy & Security.

Step 7. In the Security section follow Developer Mode.

Step 8. Enable Developer Mode and restart your device.

Step 9. Connect your iPhone to a PC or Mac and Turn On Developer Mode.

Step 10. Install RootHide Bootstrap on your iPhone running iOS 16.

Step 11. Activate tweak injection into Serotonin with Bootstrap app.

Step 12. Install ellekit using the Sileo package manager.

Step 13. Open Serotonin from the Home Screen.

Info: Tipa files are essentially IPA files with modified extensions. These files are specifically recognized by TrollStore and typically cannot be installed using traditional IPA installers.

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Written by

Kuba has over 20 years of experience in journalism, focusing on jailbreak since 2012. He has interviewed professionals from various companies. Besides journalism, Kuba specializes in video editing and drone flying. He studied IT at university before his writing career.

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