The most important of all, before you start to read this guide, make sure you have the ability to handle the problem you meet. You are fully doing this at your own risk, I’m not responsible for any damage caused.

If you don’t know what this article is doing, you can download the released ipa on the author website resign by tools such as iResign and install it to your iPhone without building it youself.

Advantage of build the toolkit yourself

1. Know the structure of the code
2. Preventing if there were malicious code in toolkit.
3. Remove unused features. For example, in this toolkit, it will install Anemone tweak after you jailbreak. The last part in this tutorial will told you how to do it.
4. Keep the latest version, you can pull the latest version from Github and build it yourself.
5. You need to turn the SIP off of macOS before you did these instructions.

Clone repo

You can access the Electra repo on Github, which contain a Xcode project.
Clone it to your ~/Desktop or any other path you like to work with.

git clone https://github.com/coolstar/electra.git

Build Xcode project

Open the Xcode project then build. You will meet some error with the clean Xcode environment.

ldid2 error

After you build the project, you will meet a error. You will see this error:

At the first test, I tried install ldid original version by

brew install ldid

and the bin of the ldid would be at /usr/local/Cellar/ldid/1.2.1, then link it as ldid2 in /usr/local/bin

ln -s /usr/local/Cellar/ldid/1.2.1/bin/ldid /usr/local/bin/ldid2

With the ldid, it can work, and you can build the toolkit into your iPhone. However, the jailbreak won’t success and block on 2/3.

So I tried to find the solution on Github. I found xerub make a ldid2 with SHA256 support. However, this repo is not complete. The repo are lack of make code and wasn’t build.

Add ldid2 to /usr/local/bin/

I completed the ldid2 project and put the binary in release version page.
Project Link

curl https://raw.githubusercontent.com/GaryniL/ldid/master/ldid2 -o ldid2
sudo mv ldid2 /usr/local/bin/
chmod +x /usr/local/bin/ldid2

Then rebuild the project, it will work.

Remove Anemone

Besides, you can remove the line for preventing installing Anemone tweak

這篇文章 [Tutorial] How to build Electra ( iOS 11 Jailbreak app ) with ldid2 最早出現於 Gary's ...Lasamia。

The I/O Kit framework implements non-kernel access to I/O Kit objects (drivers and nubs) through the device-interface mechanism.

So, in this article, I tried to write down how I import IOKit framework into a Xcode project.

Things you need are：

• Xcode 8 (This sample was builded on Xcode version 8 in macOS 10.12)
• iOS SDK (It should be installed with your Xcode)
• Trident – IOKit header files

Import Error

When you try to use IOKit, for instance：
#import <IOKit/IOKitLib.h>

you may meet error like this：

Step 1：Import IOKit Framework

Different from IOKit as a libraries on iOS 5, Apple change IOKit from library into framework on iOS 7.
So first of all, we need to import the IOKit framework in Xcode.app into our project

if you try to type in your terminal
$ find /Applications/Xcode.app/ -name IOKit.framework
you will find 5 different IOKit framework of 5 different platforms in Xcode.app

We need “iPhoneOS.platform” recently, the path is：

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/IOKit.framework

Then go to application Target → General in Xcode project tab, and find “Link Frameworks and Libraries“.

Press the add button on the bottom left and use “Add Other” button to find the framework in the specific path.

Find the IOKit.framework on the path I mentioned above and add it, after you finish it, it will show up in the area of “Link Frameworks and Libraries”

Also remember check if the IOKit.framework also shows up at the area of “Link Binary with Libraries” at application Target → Build Phases in Xcode project tab

Step 2：Add header files of IOKit

I read some article on internet said that header files of IOKit framework will be at

Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/Frameworks/IOKit.framework/Headers

but I couldn’t find any header files in the path, so I tried another way.
I use the header files in Trident and add it to my project.
First, download it form GitHub, what we need is a folder in it Trident-master/Headers/IOKit called IOKit

Copy the IOKit folder to $(SRCROOT) – the path to the directory containing your Xcode project

Then link the folder to your project, drag the folder to the project’s “Groups & Files” area

Step 3：Make Xcode find header files you added

Go to application Target → Build Setting in Xcode project tab, and search “Header Search Paths” by search bar on the top right of navigator.

and add $(SRCROOT) into the item, remember change the option to “recursive”

Then it done.
Remember to clean your project (CMD+SHIFT+K) and build it again

這篇文章 [Tutorial] Import IOKit framework into Xcode project 最早出現於 Gary's ...Lasamia。

The resource could not be loaded because the App Transport 
Security policy requires the use of a secure connection

查了一下Document才知道 Apple在 WWDC 2015改變了一些東西：“What’s New in iOS 9”

App Transport Security

App Transport Security (ATS) enforces best practices in the secure connections between an app and its back end. ATS prevents accidental disclosure, provides secure default behavior, and is easy to adopt; it is also on by default in iOS 9 and OS X v10.11. You should adopt ATS as soon as possible, regardless of whether you’re creating a new app or updating an existing one.

If you’re developing a new app, you should use HTTPS exclusively. If you have an existing app, you should use HTTPS as much as you can right now, and create a plan for migrating the rest of your app as soon as possible. In addition, your communication through higher-level APIs needs to be encrypted using TLS version 1.2 with forward secrecy. If you try to make a connection that doesn’t follow this requirement, an error is thrown. If your app needs to make a request to an insecure domain, you have to specify this domain in your app’s Info.plist file

簡單來說就是Apple因為安全性建議大家使用Https取代Http，未來版本不確定是否會強制規定使用Https，但目前可以以修改info.plist的方式來恢復舊有的方法。

當然可以使用ATS當然是最好的，也是更安全的方式！

而解決方法則是，在專案的info.plist加入以下的值：

<key>NSAppTransportSecurity</key>
<dict>
  <key>NSExceptionDomains</key>
  <dict>
    <key>你的域名或主機</key>
    <dict>
      <!--Include to allow subdomains-->
      <key>NSIncludesSubdomains</key>
      <true/>
      <!--Include to allow HTTP requests-->
      <key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
      <true/>
      <!--Include to specify minimum TLS version-->
      <key>NSTemporaryExceptionMinimumTLSVersion</key>
      <string>TLSv1.1</string>
    </dict>
  </dict>
</dict>

當然也會出現你沒辦法決定對哪些網址你要開放的狀況..
那就如下面這樣全部開放：

<key>NSAppTransportSecurity</key>
<dict>
  <!--Include to allow all connections (DANGER)-->
  <key>NSAllowsArbitraryLoads</key>
      <true/>
</dict>

大致上這樣就可以正常使用了～
當然比較安全也根本的方法是改變成 Https…

這篇文章 iOS 9 App Transport Security 設定 最早出現於 Gary's ...Lasamia。