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Fugu iOS 15.0 – iOS 15.4 Untethered Jailbreak 2022 Free



Today share Fugu iOS 15.0 – iOS 15.4 Untethered Jailbreak Linus Henze, an iOS developer, has released the Fugu14 untethered jailbreak tool for devices running iOS 14.5.1 – 14.3. With the Unc0ver jailbreak, you can use Fugu iOS 15.0 to install Cydia.With the newest Uncover update, the Fugu14 jailbreak can be installed automatically. How do I use Unc0ver to download Fugu14 Jailbreak automatically?Unc0ver’s previous updates can be used to jailbreak Fugu. It is a method that must be installed manually. With Unc0ver Jailbreak, Fugu14 may be installed manually.

Fugu iOS 15.0 – iOS 15.4 Untethered Jailbreak

Fugu iOS 15.0 - iOS 15.4 Untethered Jailbreak

Fugu iOS 15.0 – iOS 15.4 Untethered Jailbreak

What is Fugu Jailbreak, and how does it work?

Fugu iOS 15.0 jailbreak was the first open-source jailbreak program based on the Checkm8 hack. Fugu will now automatically set up Sileo, SSH, and Substitute! Even better, all changes made to the root file system are already stored indefinitely. DFU mode your device, then launch Fugu trap, unlock it, and follow the on-screen instructions.

@LinusHenze demonstrated an Fugu iOS 15.0 jailbreak on an iPhone 12 Pro Max towards the end of last month. He’s now hinted at this on the cover photo of his Twitter account, which he recently updated. So, it appears that the new fugu untethered jailbreak 2021 for iOS 14 will be out soon.

Unc0ver v8.0.2 is now supported by Fugu iOS 15.0

With the Fugu14 untethered jailbreak as the exploit, Unc0ver v8.0.2 now supports iOS 14.4-14.5.1 on A12-A14 devices. When you install the newest Unc0ver Jailbreak, Fugu14 will now be installed automatically.

Unc0ver must be installed using AltStore latest version v1.4.8 if you want Fugu14 to install automatically.

Install and execute Unc0ver on iOS 14.4-14.5.1 before running Fugu14 Jailbreak (A12-A14)

Unc0ver v8.0.2 is available for free download.

Uncover v8.0.2 can be downloaded from the internet (This method only support manually installing Fugu Jailbreak)


The current version of Unc0ver supports all iPhones and iPads with A12-A14 Bionic Chipsets, including the iPhone 11 and iPhone 12 series. Linus Henze’s Fugu14 tested the latest Unc0ver builds before they were released and determined them to be error-free and functional.

How to jailbreak with Unc0ver + Fugu iOS 15.0

* You must have a device that is compatible with the Fugu14 jailbreak. Make sure your device is compatible.

To use the Fugu14 jailbreak, you’ll need to install Unc0ver.
If your device is compatible with Fugu14, you’ll want to install Unc0ver on it. On the Unc0ver tool, several techniques must be installed. You can use any technique to install the Unc0ver utility.

1:Unc0ver Install Online
2:Unc0ver Install on Mac
3:Unc0ver Install On Windows PC
4:Unc0ver install on Linux
5:Unc0ver Install Other methods

You can launch Fugu14 automatically if you have the newest version of Unc0ver installed.

You can use the manual way to install Fugu14 jailbreak if you have Unc0ver v 7.0.1 or lower installed. How do I manually install the Fugu14 jailbreak?

How to Fugu iOS 15.0 Jailbreak building and running

Installation requirements for Fugu14 Jailbreak


1:Fugu14 jailbreak compatible iOS / iPadOS device
2:Mac computer with Xcode installed
3:USB connection
4:You want to proxy and device installer installed (brew install usbmuxd device installer)

All you have to do now is run the ios script and follow the instructions to build and launch the iOS Jailbreak. If you get an issue about code signing, go to arm/iOS/Fugu14App/Fugu14App. xcodeproj and change the code signing options.

Fugu jailbreak building

Simply follow these basic instructions to get started with Fugu construction.

1:Download Fugu
2:Install Xcode and Homebrew on your macOS
3:Install LLVM and Binutils using Homebrew
4:Open the Fugu Xcode Project
5:Select Fugu as the target & and build it
6:Then, in the build directory, you’ll see Fugu and a shellcode folder.
7:All you have to do is type Fugu strap to get everything working with Fugu – If running this command numerous times does not work, try entering DFU mode again and try again.

Fugu iOS 15.0 – iOS 15.4 untethered jailbreak features

1:The kernel exploit is extremely reliable and it will never trigger a kernel panic.
2:Fugu14 has a simple TCP shell that is available on port 1337.
3:Trustcaches put in /.Fugul5Untether/trustcaches/ will be loaded automatically.
4:Executables put in /.Fugul5Untether/autorun/ will be launched during boot. Fugu iOS 15.0 – iOS 15.4 make sure to also create a trust cache for your executable.
5:Fugu iOS 15.0 – iOS 15.4 jailbreak supports Siguza’s libkrw library (load/usr/lib/libkrw/libFugul4Krw.dylib and call krw_initializer)
6:Developers of jailbreak tools: you now have the option to create an untethered jailbreak. Supports the libkrw library from Siguza (load /usr/lib/libkrw/libFugul4Krw.dylib and call krw_initializer ) just by creating a CLI version that supports libkrw, copying it to /.Fugul4Untether/autorun/ and writing a trust cache to /.Fugul4Untether/trustcaches/ )

Fugu Jailbreak methods

The Fugu15 jailbreak method will be available online soon. To begin, the Fugu14 Jailbreak will only be available on Mac. The Fugu developer has officially published Fugu Jailbreak download for Mac, but there is no information on whether it will be available for Windows or Linux PCs.

Fugu components

The following components make up the Fugu14 – iOS 14.5 untethered jailbreak:


This macOS application uses checkm8 to upload iStrap, iStrap loader, and iDownload to your device.

iStrap loader — This is a little shellcode that patches iBoot and then launches iStrap once iBoot has finished its job.

Bootstrapper for the Kernel — iStrap You’ll see that the kernel has been patched when you boot up, which is a crucial stage in the jailbreak process. While running shellcode inside the kernel, it also injects boot parameters as needed.

iDownload – iDownload is a small application that is installed at startup and takes the place of the default launchd application. The forked copy will run on Port 1337 (only on and via iproxy) and provide a simple bash-like user interface similar to the original.

Warning with Fugu iOS 15.0 Jailbreaking process

1:The untether can cause your device to BOOTLOOP if you play with it too much.
2:The fast untether feature has not been tested on a real device and should therefore be avoided if possible.
3:Even if it works, the fast untether poses a greater safety risk than the “slow” untether.

Before making any changes to the Untether, the developers recommend that you try it on a virtual device first.

How to recovery – Fugu iOS 15.0

Because you didn’t read the warnings, your device is currently locked in a bootloop. While you were messing with the options, I’m hoping you didn’t enable the quick untether.


In any case, before updating your smartphone to the most recent version of iOS, try the following:

1:Get irecovery for your computer and install it.

2:Boot into the recovery mode after connecting your device to the computer with a USB cable.

3:Proceed your computer with irecovery -s and then type the following commands:
setenv boot-args no_untether



4:It’s safe to say that your device has now successfully rebooted. If it doesn’t, go back to step two, run irecovery -s, and then type the following commands:
setenv boot-args untether_force_restore




Is your device still not turning on? You’ll have to update to the most recent versions, unfortunately.

Who created the Fugu iOS 15.0 jailbreak?

Like other programs, Linus Henze’s Fugu14 incorporates (derived) code produced by others.

Linus Henze would like to thank the following people for sharing their open-source code with him: Samuel Groß used the SLOP approach and the JavaScript Int64 library (+utils) in the dyld exploit.

A handful of Apple header files are also included in Fugu14. Fugu14 is free to use under the terms of the MIT license.

What makes an untethered jailbreak superior to a tethered jailbreak?

For those looking to get out of jail quickly, a semi-untethered jailbreak is currently accessible. The jailbreak app must be re-run even if your device resets for it to operate again.


Is Fugu 14 a fully functional jailbreak tool? So, the Fugu iOS 15.0 details include that it will be an untethered jailbreak for arm64e devices. Untethered implies you don’t have to run any software after you jailbreak. You don’t have to download and run Uncover, Taurine, or Chimera again. If you do it once and are jailbroken, the only way to unjailbreak it is to restore it via iTunes, so it may also be unjailbroken.

You could reboot your phone with a tethered jailbreak in the past, but you needed a PC to reinitialize the jailbreak thereafter. If you have an untethered iPhone or iPad, you can easily reboot, switch off, and turn it back on. It will begin to boot normally, and everything on your device will function regularly.

The untethered jailbreak is the greatest option. However, achieving it is the most difficult aspect. If @LinusHenze can jailbreak iOS 14 without utilizing a third-party tool, it will be a big achievement. Untether can replace semi-untethered jailbreaks like Checkra1n, Unc0ver, and Taurine, all of which can be converted.How to download fugu14 online, as well as fresh fugu untethered jailbreak download and all other important fugu jailbreak information, will be updated shortly.It’s working properly.

Step-by-Step Instructions for Manually Installing Fugu iOS 15.0 Jailbreak

If you have Unc0ver v7.0.1 or lower, you can run Fugu14 Jailbreak manually using the instructions below.

1: Install Unc0ver Jailbreak

You can start by downloading and installing the Unc0ver jailbreak. >> Download the Unc0ver jailbreak >>

If you already have Unc0ver Jailbreak installed, you can execute Fugu14 jailbreak manually using the instructions below.

2:You’ll need a Mac computer to complete this step.

If you don’t own a Mac, don’t worry: the next Fugu update will be compatible with all PC models.


3: Obtain xcode (on Mac)

If you wish to get Xcode from the app store, click here.

Simply open the app store, look for it, and install it.

3.1 After you’ve installed Xcode, it’ll ask you to open a new terminal window and search for the terminal.

3.2 You’ll be able to see the terminal field after pressing enter.

3.3 In the text below, there is a command that you must copy and paste. Then press enter to reveal the terminal field.

After installing Xcode, run the following command:

sudo xcode-select –switch /Applications/


3.4 Just click on enter.

3.5 It will ask for your password. The field will stay hidden even though you are typing in the password, then click on OK.

4: Install Python

The next step is to obtain Python.

Download Python After that, run the package file by clicking on it. Check to see if Python is installed.

5: Install Homebrew

5.1 After that, you’ll need to get Homebrew. You only need to look for this icon right now. This will replicate the install command if you click on it.

5.2 After that, start a new terminal window.

5.3 Paste the command into a command prompt, then run the steps to install Homebrew.


6:Download iOS Downloads

Then, for your device, you’ll need to download the iOS software.

6.1 On the iPhone, we’ll start by looking for your iPhone model and then scroll down. Until your iOS 14 version is released.

It makes no difference if this firmware is unsigned; in fact, it makes no difference at all.

6.2 Simply click on it, then select Download, and then save the file.

7: Get Fugu iOS 15.0 on your computer.

After that, we’ll need to get Fugu iOS 15.0.

Simply click on code download zip, then save file and okay, and figure 14 will download.

Download the Fugu iOS 15.0 zip file (download link)


You’ll need to have the AltStore installed on your smartphone before we go any further.

The primary reason for this is that we require an identity from the AltStore, which is only available when required.

So, once you’ve downloaded everything, we can begin the lengthy process.

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